1 files changed, 5907 insertions, 0 deletions
diff --git a/contrib/glfw/glfw-3.3.5.bin.WIN64/include/GLFW/glfw3.h b/contrib/glfw/glfw-3.3.5.bin.WIN64/include/GLFW/glfw3.h
new file mode 100644
index 0000000..9503dd0
--- /dev/null
+++ b/contrib/glfw/glfw-3.3.5.bin.WIN64/include/GLFW/glfw3.h
@@ -0,0 +1,5907 @@
+/*************************************************************************
+ * GLFW 3.3 - www.glfw.org
+ * A library for OpenGL, window and input
+ *------------------------------------------------------------------------
+ * Copyright (c) 2002-2006 Marcus Geelnard
+ * Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would
+ *    be appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not
+ *    be misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ *    distribution.
+ *
+ *************************************************************************/
+#ifndef _glfw3_h_
+#define _glfw3_h_
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*************************************************************************
+ * Doxygen documentation
+ *************************************************************************/
+/*! @file glfw3.h
+ *  @brief The header of the GLFW 3 API.
+ *
+ *  This is the header file of the GLFW 3 API.  It defines all its types and
+ *  declares all its functions.
+ *
+ *  For more information about how to use this file, see @ref build_include.
+ */
+/*! @defgroup context Context reference
+ *  @brief Functions and types related to OpenGL and OpenGL ES contexts.
+ *
+ *  This is the reference documentation for OpenGL and OpenGL ES context related
+ *  functions.  For more task-oriented information, see the @ref context_guide.
+ */
+/*! @defgroup vulkan Vulkan support reference
+ *  @brief Functions and types related to Vulkan.
+ *
+ *  This is the reference documentation for Vulkan related functions and types.
+ *  For more task-oriented information, see the @ref vulkan_guide.
+ */
+/*! @defgroup init Initialization, version and error reference
+ *  @brief Functions and types related to initialization and error handling.
+ *
+ *  This is the reference documentation for initialization and termination of
+ *  the library, version management and error handling.  For more task-oriented
+ *  information, see the @ref intro_guide.
+ */
+/*! @defgroup input Input reference
+ *  @brief Functions and types related to input handling.
+ *
+ *  This is the reference documentation for input related functions and types.
+ *  For more task-oriented information, see the @ref input_guide.
+ */
+/*! @defgroup monitor Monitor reference
+ *  @brief Functions and types related to monitors.
+ *
+ *  This is the reference documentation for monitor related functions and types.
+ *  For more task-oriented information, see the @ref monitor_guide.
+ */
+/*! @defgroup window Window reference
+ *  @brief Functions and types related to windows.
+ *
+ *  This is the reference documentation for window related functions and types,
+ *  including creation, deletion and event polling.  For more task-oriented
+ *  information, see the @ref window_guide.
+ */
+/*************************************************************************
+ * Compiler- and platform-specific preprocessor work
+ *************************************************************************/
+/* If we are we on Windows, we want a single define for it.
+ */
+#if !defined(_WIN32) && (defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__))
+ #define _WIN32
+#endif /* _WIN32 */
+/* Include because most Windows GLU headers need wchar_t and
+ * the macOS OpenGL header blocks the definition of ptrdiff_t by glext.h.
+ * Include it unconditionally to avoid surprising side-effects.
+ */
+#include <stddef.h>
+/* Include because it is needed by Vulkan and related functions.
+ * Include it unconditionally to avoid surprising side-effects.
+ */
+#include <stdint.h>
+#if defined(GLFW_INCLUDE_VULKAN)
+  #include <vulkan/vulkan.h>
+#endif /* Vulkan header */
+/* The Vulkan header may have indirectly included windows.h (because of
+ * VK_USE_PLATFORM_WIN32_KHR) so we offer our replacement symbols after it.
+ */
+/* It is customary to use APIENTRY for OpenGL function pointer declarations on
+ * all platforms.  Additionally, the Windows OpenGL header needs APIENTRY.
+ */
+#if !defined(APIENTRY)
+ #if defined(_WIN32)
+  #define APIENTRY __stdcall
+ #else
+  #define APIENTRY
+ #endif
+ #define GLFW_APIENTRY_DEFINED
+#endif /* APIENTRY */
+/* Some Windows OpenGL headers need this.
+ */
+#if !defined(WINGDIAPI) && defined(_WIN32)
+ #define WINGDIAPI __declspec(dllimport)
+ #define GLFW_WINGDIAPI_DEFINED
+#endif /* WINGDIAPI */
+/* Some Windows GLU headers need this.
+ */
+#if !defined(CALLBACK) && defined(_WIN32)
+ #define CALLBACK __stdcall
+ #define GLFW_CALLBACK_DEFINED
+#endif /* CALLBACK */
+/* Include the chosen OpenGL or OpenGL ES headers.
+ */
+#if defined(GLFW_INCLUDE_ES1)
+ #include <GLES/gl.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES/glext.h>
+ #endif
+#elif defined(GLFW_INCLUDE_ES2)
+ #include <GLES2/gl2.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+#elif defined(GLFW_INCLUDE_ES3)
+ #include <GLES3/gl3.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+#elif defined(GLFW_INCLUDE_ES31)
+ #include <GLES3/gl31.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+#elif defined(GLFW_INCLUDE_ES32)
+ #include <GLES3/gl32.h>
+ #if defined(GLFW_INCLUDE_GLEXT)
+  #include <GLES2/gl2ext.h>
+ #endif
+#elif defined(GLFW_INCLUDE_GLCOREARB)
+ #if defined(__APPLE__)
+  #include <OpenGL/gl3.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <OpenGL/gl3ext.h>
+  #endif /*GLFW_INCLUDE_GLEXT*/
+ #else /*__APPLE__*/
+  #include <GL/glcorearb.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <GL/glext.h>
+  #endif
+ #endif /*__APPLE__*/
+#elif defined(GLFW_INCLUDE_GLU)
+ #if defined(__APPLE__)
+  #if defined(GLFW_INCLUDE_GLU)
+   #include <OpenGL/glu.h>
+  #endif
+ #else /*__APPLE__*/
+  #if defined(GLFW_INCLUDE_GLU)
+   #include <GL/glu.h>
+  #endif
+ #endif /*__APPLE__*/
+#elif !defined(GLFW_INCLUDE_NONE) && \
+      !defined(__gl_h_) && \
+      !defined(__gles1_gl_h_) && \
+      !defined(__gles2_gl2_h_) && \
+      !defined(__gles2_gl3_h_) && \
+      !defined(__gles2_gl31_h_) && \
+      !defined(__gles2_gl32_h_) && \
+      !defined(__gl_glcorearb_h_) && \
+      !defined(__gl2_h_) /*legacy*/ && \
+      !defined(__gl3_h_) /*legacy*/ && \
+      !defined(__gl31_h_) /*legacy*/ && \
+      !defined(__gl32_h_) /*legacy*/ && \
+      !defined(__glcorearb_h_) /*legacy*/ && \
+      !defined(__GL_H__) /*non-standard*/ && \
+      !defined(__gltypes_h_) /*non-standard*/ && \
+      !defined(__glee_h_) /*non-standard*/
+ #if defined(__APPLE__)
+  #if !defined(GLFW_INCLUDE_GLEXT)
+   #define GL_GLEXT_LEGACY
+  #endif
+  #include <OpenGL/gl.h>
+ #else /*__APPLE__*/
+  #include <GL/gl.h>
+  #if defined(GLFW_INCLUDE_GLEXT)
+   #include <GL/glext.h>
+  #endif
+ #endif /*__APPLE__*/
+#endif /* OpenGL and OpenGL ES headers */
+#if defined(GLFW_DLL) && defined(_GLFW_BUILD_DLL)
+ /* GLFW_DLL must be defined by applications that are linking against the DLL
+  * version of the GLFW library.  _GLFW_BUILD_DLL is defined by the GLFW
+  * configuration header when compiling the DLL version of the library.
+  */
+ #error "You must not have both GLFW_DLL and _GLFW_BUILD_DLL defined"
+#endif
+/* GLFWAPI is used to declare public API functions for export
+ * from the DLL / shared library / dynamic library.
+ */
+#if defined(_WIN32) && defined(_GLFW_BUILD_DLL)
+ /* We are building GLFW as a Win32 DLL */
+ #define GLFWAPI __declspec(dllexport)
+#elif defined(_WIN32) && defined(GLFW_DLL)
+ /* We are calling GLFW as a Win32 DLL */
+ #define GLFWAPI __declspec(dllimport)
+#elif defined(__GNUC__) && defined(_GLFW_BUILD_DLL)
+ /* We are building GLFW as a shared / dynamic library */
+ #define GLFWAPI __attribute__((visibility("default")))
+#else
+ /* We are building or calling GLFW as a static library */
+ #define GLFWAPI
+#endif
+/*************************************************************************
+ * GLFW API tokens
+ *************************************************************************/
+/*! @name GLFW version macros
+ *  @{ */
+/*! @brief The major version number of the GLFW header.
+ *
+ *  The major version number of the GLFW header.  This is incremented when the
+ *  API is changed in non-compatible ways.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_MAJOR          3
+/*! @brief The minor version number of the GLFW header.
+ *
+ *  The minor version number of the GLFW header.  This is incremented when
+ *  features are added to the API but it remains backward-compatible.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_MINOR          3
+/*! @brief The revision number of the GLFW header.
+ *
+ *  The revision number of the GLFW header.  This is incremented when a bug fix
+ *  release is made that does not contain any API changes.
+ *  @ingroup init
+ */
+#define GLFW_VERSION_REVISION       5
+/*! @} */
+/*! @brief One.
+ *
+ *  This is only semantic sugar for the number 1.  You can instead use `1` or
+ *  `true` or `_True` or `GL_TRUE` or `VK_TRUE` or anything else that is equal
+ *  to one.
+ *
+ *  @ingroup init
+ */
+#define GLFW_TRUE                   1
+/*! @brief Zero.
+ *
+ *  This is only semantic sugar for the number 0.  You can instead use `0` or
+ *  `false` or `_False` or `GL_FALSE` or `VK_FALSE` or anything else that is
+ *  equal to zero.
+ *
+ *  @ingroup init
+ */
+#define GLFW_FALSE                  0
+/*! @name Key and button actions
+ *  @{ */
+/*! @brief The key or mouse button was released.
+ *
+ *  The key or mouse button was released.
+ *
+ *  @ingroup input
+ */
+#define GLFW_RELEASE                0
+/*! @brief The key or mouse button was pressed.
+ *
+ *  The key or mouse button was pressed.
+ *
+ *  @ingroup input
+ */
+#define GLFW_PRESS                  1
+/*! @brief The key was held down until it repeated.
+ *
+ *  The key was held down until it repeated.
+ *
+ *  @ingroup input
+ */
+#define GLFW_REPEAT                 2
+/*! @} */
+/*! @defgroup hat_state Joystick hat states
+ *  @brief Joystick hat states.
+ *
+ *  See [joystick hat input](@ref joystick_hat) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_HAT_CENTERED           0
+#define GLFW_HAT_UP                 1
+#define GLFW_HAT_RIGHT              2
+#define GLFW_HAT_DOWN               4
+#define GLFW_HAT_LEFT               8
+#define GLFW_HAT_RIGHT_UP           (GLFW_HAT_RIGHT | GLFW_HAT_UP)
+#define GLFW_HAT_RIGHT_DOWN         (GLFW_HAT_RIGHT | GLFW_HAT_DOWN)
+#define GLFW_HAT_LEFT_UP            (GLFW_HAT_LEFT  | GLFW_HAT_UP)
+#define GLFW_HAT_LEFT_DOWN          (GLFW_HAT_LEFT  | GLFW_HAT_DOWN)
+/*! @} */
+/*! @defgroup keys Keyboard keys
+ *  @brief Keyboard key IDs.
+ *
+ *  See [key input](@ref input_key) for how these are used.
+ *
+ *  These key codes are inspired by the _USB HID Usage Tables v1.12_ (p. 53-60),
+ *  but re-arranged to map to 7-bit ASCII for printable keys (function keys are
+ *  put in the 256+ range).
+ *
+ *  The naming of the key codes follow these rules:
+ *   - The US keyboard layout is used
+ *   - Names of printable alpha-numeric characters are used (e.g. "A", "R",
+ *     "3", etc.)
+ *   - For non-alphanumeric characters, Unicode:ish names are used (e.g.
+ *     "COMMA", "LEFT_SQUARE_BRACKET", etc.). Note that some names do not
+ *     correspond to the Unicode standard (usually for brevity)
+ *   - Keys that lack a clear US mapping are named "WORLD_x"
+ *   - For non-printable keys, custom names are used (e.g. "F4",
+ *     "BACKSPACE", etc.)
+ *
+ *  @ingroup input
+ *  @{
+ */
+/* The unknown key */
+#define GLFW_KEY_UNKNOWN            -1
+/* Printable keys */
+#define GLFW_KEY_SPACE              32
+#define GLFW_KEY_APOSTROPHE         39  /* ' */
+#define GLFW_KEY_COMMA              44  /* , */
+#define GLFW_KEY_MINUS              45  /* - */
+#define GLFW_KEY_PERIOD             46  /* . */
+#define GLFW_KEY_SLASH              47  /* / */
+#define GLFW_KEY_0                  48
+#define GLFW_KEY_1                  49
+#define GLFW_KEY_2                  50
+#define GLFW_KEY_3                  51
+#define GLFW_KEY_4                  52
+#define GLFW_KEY_5                  53
+#define GLFW_KEY_6                  54
+#define GLFW_KEY_7                  55
+#define GLFW_KEY_8                  56
+#define GLFW_KEY_9                  57
+#define GLFW_KEY_SEMICOLON          59  /* ; */
+#define GLFW_KEY_EQUAL              61  /* = */
+#define GLFW_KEY_A                  65
+#define GLFW_KEY_B                  66
+#define GLFW_KEY_C                  67
+#define GLFW_KEY_D                  68
+#define GLFW_KEY_E                  69
+#define GLFW_KEY_F                  70
+#define GLFW_KEY_G                  71
+#define GLFW_KEY_H                  72
+#define GLFW_KEY_I                  73
+#define GLFW_KEY_J                  74
+#define GLFW_KEY_K                  75
+#define GLFW_KEY_L                  76
+#define GLFW_KEY_M                  77
+#define GLFW_KEY_N                  78
+#define GLFW_KEY_O                  79
+#define GLFW_KEY_P                  80
+#define GLFW_KEY_Q                  81
+#define GLFW_KEY_R                  82
+#define GLFW_KEY_S                  83
+#define GLFW_KEY_T                  84
+#define GLFW_KEY_U                  85
+#define GLFW_KEY_V                  86
+#define GLFW_KEY_W                  87
+#define GLFW_KEY_X                  88
+#define GLFW_KEY_Y                  89
+#define GLFW_KEY_Z                  90
+#define GLFW_KEY_LEFT_BRACKET       91  /* [ */
+#define GLFW_KEY_BACKSLASH          92  /* \ */
+#define GLFW_KEY_RIGHT_BRACKET      93  /* ] */
+#define GLFW_KEY_GRAVE_ACCENT       96  /* ` */
+#define GLFW_KEY_WORLD_1            161 /* non-US #1 */
+#define GLFW_KEY_WORLD_2            162 /* non-US #2 */
+/* Function keys */
+#define GLFW_KEY_ESCAPE             256
+#define GLFW_KEY_ENTER              257
+#define GLFW_KEY_TAB                258
+#define GLFW_KEY_BACKSPACE          259
+#define GLFW_KEY_INSERT             260
+#define GLFW_KEY_DELETE             261
+#define GLFW_KEY_RIGHT              262
+#define GLFW_KEY_LEFT               263
+#define GLFW_KEY_DOWN               264
+#define GLFW_KEY_UP                 265
+#define GLFW_KEY_PAGE_UP            266
+#define GLFW_KEY_PAGE_DOWN          267
+#define GLFW_KEY_HOME               268
+#define GLFW_KEY_END                269
+#define GLFW_KEY_CAPS_LOCK          280
+#define GLFW_KEY_SCROLL_LOCK        281
+#define GLFW_KEY_NUM_LOCK           282
+#define GLFW_KEY_PRINT_SCREEN       283
+#define GLFW_KEY_PAUSE              284
+#define GLFW_KEY_F1                 290
+#define GLFW_KEY_F2                 291
+#define GLFW_KEY_F3                 292
+#define GLFW_KEY_F4                 293
+#define GLFW_KEY_F5                 294
+#define GLFW_KEY_F6                 295
+#define GLFW_KEY_F7                 296
+#define GLFW_KEY_F8                 297
+#define GLFW_KEY_F9                 298
+#define GLFW_KEY_F10                299
+#define GLFW_KEY_F11                300
+#define GLFW_KEY_F12                301
+#define GLFW_KEY_F13                302
+#define GLFW_KEY_F14                303
+#define GLFW_KEY_F15                304
+#define GLFW_KEY_F16                305
+#define GLFW_KEY_F17                306
+#define GLFW_KEY_F18                307
+#define GLFW_KEY_F19                308
+#define GLFW_KEY_F20                309
+#define GLFW_KEY_F21                310
+#define GLFW_KEY_F22                311
+#define GLFW_KEY_F23                312
+#define GLFW_KEY_F24                313
+#define GLFW_KEY_F25                314
+#define GLFW_KEY_KP_0               320
+#define GLFW_KEY_KP_1               321
+#define GLFW_KEY_KP_2               322
+#define GLFW_KEY_KP_3               323
+#define GLFW_KEY_KP_4               324
+#define GLFW_KEY_KP_5               325
+#define GLFW_KEY_KP_6               326
+#define GLFW_KEY_KP_7               327
+#define GLFW_KEY_KP_8               328
+#define GLFW_KEY_KP_9               329
+#define GLFW_KEY_KP_DECIMAL         330
+#define GLFW_KEY_KP_DIVIDE          331
+#define GLFW_KEY_KP_MULTIPLY        332
+#define GLFW_KEY_KP_SUBTRACT        333
+#define GLFW_KEY_KP_ADD             334
+#define GLFW_KEY_KP_ENTER           335
+#define GLFW_KEY_KP_EQUAL           336
+#define GLFW_KEY_LEFT_SHIFT         340
+#define GLFW_KEY_LEFT_CONTROL       341
+#define GLFW_KEY_LEFT_ALT           342
+#define GLFW_KEY_LEFT_SUPER         343
+#define GLFW_KEY_RIGHT_SHIFT        344
+#define GLFW_KEY_RIGHT_CONTROL      345
+#define GLFW_KEY_RIGHT_ALT          346
+#define GLFW_KEY_RIGHT_SUPER        347
+#define GLFW_KEY_MENU               348
+#define GLFW_KEY_LAST               GLFW_KEY_MENU
+/*! @} */
+/*! @defgroup mods Modifier key flags
+ *  @brief Modifier key flags.
+ *
+ *  See [key input](@ref input_key) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+/*! @brief If this bit is set one or more Shift keys were held down.
+ *
+ *  If this bit is set one or more Shift keys were held down.
+ */
+#define GLFW_MOD_SHIFT           0x0001
+/*! @brief If this bit is set one or more Control keys were held down.
+ *
+ *  If this bit is set one or more Control keys were held down.
+ */
+#define GLFW_MOD_CONTROL         0x0002
+/*! @brief If this bit is set one or more Alt keys were held down.
+ *
+ *  If this bit is set one or more Alt keys were held down.
+ */
+#define GLFW_MOD_ALT             0x0004
+/*! @brief If this bit is set one or more Super keys were held down.
+ *
+ *  If this bit is set one or more Super keys were held down.
+ */
+#define GLFW_MOD_SUPER           0x0008
+/*! @brief If this bit is set the Caps Lock key is enabled.
+ *
+ *  If this bit is set the Caps Lock key is enabled and the @ref
+ *  GLFW_LOCK_KEY_MODS input mode is set.
+ */
+#define GLFW_MOD_CAPS_LOCK       0x0010
+/*! @brief If this bit is set the Num Lock key is enabled.
+ *
+ *  If this bit is set the Num Lock key is enabled and the @ref
+ *  GLFW_LOCK_KEY_MODS input mode is set.
+ */
+#define GLFW_MOD_NUM_LOCK        0x0020
+/*! @} */
+/*! @defgroup buttons Mouse buttons
+ *  @brief Mouse button IDs.
+ *
+ *  See [mouse button input](@ref input_mouse_button) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_MOUSE_BUTTON_1         0
+#define GLFW_MOUSE_BUTTON_2         1
+#define GLFW_MOUSE_BUTTON_3         2
+#define GLFW_MOUSE_BUTTON_4         3
+#define GLFW_MOUSE_BUTTON_5         4
+#define GLFW_MOUSE_BUTTON_6         5
+#define GLFW_MOUSE_BUTTON_7         6
+#define GLFW_MOUSE_BUTTON_8         7
+#define GLFW_MOUSE_BUTTON_LAST      GLFW_MOUSE_BUTTON_8
+#define GLFW_MOUSE_BUTTON_LEFT      GLFW_MOUSE_BUTTON_1
+#define GLFW_MOUSE_BUTTON_RIGHT     GLFW_MOUSE_BUTTON_2
+#define GLFW_MOUSE_BUTTON_MIDDLE    GLFW_MOUSE_BUTTON_3
+/*! @} */
+/*! @defgroup joysticks Joysticks
+ *  @brief Joystick IDs.
+ *
+ *  See [joystick input](@ref joystick) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_JOYSTICK_1             0
+#define GLFW_JOYSTICK_2             1
+#define GLFW_JOYSTICK_3             2
+#define GLFW_JOYSTICK_4             3
+#define GLFW_JOYSTICK_5             4
+#define GLFW_JOYSTICK_6             5
+#define GLFW_JOYSTICK_7             6
+#define GLFW_JOYSTICK_8             7
+#define GLFW_JOYSTICK_9             8
+#define GLFW_JOYSTICK_10            9
+#define GLFW_JOYSTICK_11            10
+#define GLFW_JOYSTICK_12            11
+#define GLFW_JOYSTICK_13            12
+#define GLFW_JOYSTICK_14            13
+#define GLFW_JOYSTICK_15            14
+#define GLFW_JOYSTICK_16            15
+#define GLFW_JOYSTICK_LAST          GLFW_JOYSTICK_16
+/*! @} */
+/*! @defgroup gamepad_buttons Gamepad buttons
+ *  @brief Gamepad buttons.
+ *
+ *  See @ref gamepad for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_GAMEPAD_BUTTON_A               0
+#define GLFW_GAMEPAD_BUTTON_B               1
+#define GLFW_GAMEPAD_BUTTON_X               2
+#define GLFW_GAMEPAD_BUTTON_Y               3
+#define GLFW_GAMEPAD_BUTTON_LEFT_BUMPER     4
+#define GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER    5
+#define GLFW_GAMEPAD_BUTTON_BACK            6
+#define GLFW_GAMEPAD_BUTTON_START           7
+#define GLFW_GAMEPAD_BUTTON_GUIDE           8
+#define GLFW_GAMEPAD_BUTTON_LEFT_THUMB      9
+#define GLFW_GAMEPAD_BUTTON_RIGHT_THUMB     10
+#define GLFW_GAMEPAD_BUTTON_DPAD_UP         11
+#define GLFW_GAMEPAD_BUTTON_DPAD_RIGHT      12
+#define GLFW_GAMEPAD_BUTTON_DPAD_DOWN       13
+#define GLFW_GAMEPAD_BUTTON_DPAD_LEFT       14
+#define GLFW_GAMEPAD_BUTTON_LAST            GLFW_GAMEPAD_BUTTON_DPAD_LEFT
+#define GLFW_GAMEPAD_BUTTON_CROSS       GLFW_GAMEPAD_BUTTON_A
+#define GLFW_GAMEPAD_BUTTON_CIRCLE      GLFW_GAMEPAD_BUTTON_B
+#define GLFW_GAMEPAD_BUTTON_SQUARE      GLFW_GAMEPAD_BUTTON_X
+#define GLFW_GAMEPAD_BUTTON_TRIANGLE    GLFW_GAMEPAD_BUTTON_Y
+/*! @} */
+/*! @defgroup gamepad_axes Gamepad axes
+ *  @brief Gamepad axes.
+ *
+ *  See @ref gamepad for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+#define GLFW_GAMEPAD_AXIS_LEFT_X        0
+#define GLFW_GAMEPAD_AXIS_LEFT_Y        1
+#define GLFW_GAMEPAD_AXIS_RIGHT_X       2
+#define GLFW_GAMEPAD_AXIS_RIGHT_Y       3
+#define GLFW_GAMEPAD_AXIS_LEFT_TRIGGER  4
+#define GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER 5
+#define GLFW_GAMEPAD_AXIS_LAST          GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER
+/*! @} */
+/*! @defgroup errors Error codes
+ *  @brief Error codes.
+ *
+ *  See [error handling](@ref error_handling) for how these are used.
+ *
+ *  @ingroup init
+ *  @{ */
+/*! @brief No error has occurred.
+ *
+ *  No error has occurred.
+ *
+ *  @analysis Yay.
+ */
+#define GLFW_NO_ERROR               0
+/*! @brief GLFW has not been initialized.
+ *
+ *  This occurs if a GLFW function was called that must not be called unless the
+ *  library is [initialized](@ref intro_init).
+ *
+ *  @analysis Application programmer error.  Initialize GLFW before calling any
+ *  function that requires initialization.
+ */
+#define GLFW_NOT_INITIALIZED        0x00010001
+/*! @brief No context is current for this thread.
+ *
+ *  This occurs if a GLFW function was called that needs and operates on the
+ *  current OpenGL or OpenGL ES context but no context is current on the calling
+ *  thread.  One such function is @ref glfwSwapInterval.
+ *
+ *  @analysis Application programmer error.  Ensure a context is current before
+ *  calling functions that require a current context.
+ */
+#define GLFW_NO_CURRENT_CONTEXT     0x00010002
+/*! @brief One of the arguments to the function was an invalid enum value.
+ *
+ *  One of the arguments to the function was an invalid enum value, for example
+ *  requesting @ref GLFW_RED_BITS with @ref glfwGetWindowAttrib.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_INVALID_ENUM           0x00010003
+/*! @brief One of the arguments to the function was an invalid value.
+ *
+ *  One of the arguments to the function was an invalid value, for example
+ *  requesting a non-existent OpenGL or OpenGL ES version like 2.7.
+ *
+ *  Requesting a valid but unavailable OpenGL or OpenGL ES version will instead
+ *  result in a @ref GLFW_VERSION_UNAVAILABLE error.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_INVALID_VALUE          0x00010004
+/*! @brief A memory allocation failed.
+ *
+ *  A memory allocation failed.
+ *
+ *  @analysis A bug in GLFW or the underlying operating system.  Report the bug
+ *  to our [issue tracker](https://github.com/glfw/glfw/issues).
+ */
+#define GLFW_OUT_OF_MEMORY          0x00010005
+/*! @brief GLFW could not find support for the requested API on the system.
+ *
+ *  GLFW could not find support for the requested API on the system.
+ *
+ *  @analysis The installed graphics driver does not support the requested
+ *  API, or does not support it via the chosen context creation backend.
+ *  Below are a few examples.
+ *
+ *  @par
+ *  Some pre-installed Windows graphics drivers do not support OpenGL.  AMD only
+ *  supports OpenGL ES via EGL, while Nvidia and Intel only support it via
+ *  a WGL or GLX extension.  macOS does not provide OpenGL ES at all.  The Mesa
+ *  EGL, OpenGL and OpenGL ES libraries do not interface with the Nvidia binary
+ *  driver.  Older graphics drivers do not support Vulkan.
+ */
+#define GLFW_API_UNAVAILABLE        0x00010006
+/*! @brief The requested OpenGL or OpenGL ES version is not available.
+ *
+ *  The requested OpenGL or OpenGL ES version (including any requested context
+ *  or framebuffer hints) is not available on this machine.
+ *
+ *  @analysis The machine does not support your requirements.  If your
+ *  application is sufficiently flexible, downgrade your requirements and try
+ *  again.  Otherwise, inform the user that their machine does not match your
+ *  requirements.
+ *
+ *  @par
+ *  Future invalid OpenGL and OpenGL ES versions, for example OpenGL 4.8 if 5.0
+ *  comes out before the 4.x series gets that far, also fail with this error and
+ *  not @ref GLFW_INVALID_VALUE, because GLFW cannot know what future versions
+ *  will exist.
+ */
+#define GLFW_VERSION_UNAVAILABLE    0x00010007
+/*! @brief A platform-specific error occurred that does not match any of the
+ *  more specific categories.
+ *
+ *  A platform-specific error occurred that does not match any of the more
+ *  specific categories.
+ *
+ *  @analysis A bug or configuration error in GLFW, the underlying operating
+ *  system or its drivers, or a lack of required resources.  Report the issue to
+ *  our [issue tracker](https://github.com/glfw/glfw/issues).
+ */
+#define GLFW_PLATFORM_ERROR         0x00010008
+/*! @brief The requested format is not supported or available.
+ *
+ *  If emitted during window creation, the requested pixel format is not
+ *  supported.
+ *
+ *  If emitted when querying the clipboard, the contents of the clipboard could
+ *  not be converted to the requested format.
+ *
+ *  @analysis If emitted during window creation, one or more
+ *  [hard constraints](@ref window_hints_hard) did not match any of the
+ *  available pixel formats.  If your application is sufficiently flexible,
+ *  downgrade your requirements and try again.  Otherwise, inform the user that
+ *  their machine does not match your requirements.
+ *
+ *  @par
+ *  If emitted when querying the clipboard, ignore the error or report it to
+ *  the user, as appropriate.
+ */
+#define GLFW_FORMAT_UNAVAILABLE     0x00010009
+/*! @brief The specified window does not have an OpenGL or OpenGL ES context.
+ *
+ *  A window that does not have an OpenGL or OpenGL ES context was passed to
+ *  a function that requires it to have one.
+ *
+ *  @analysis Application programmer error.  Fix the offending call.
+ */
+#define GLFW_NO_WINDOW_CONTEXT      0x0001000A
+/*! @} */
+/*! @addtogroup window
+ *  @{ */
+/*! @brief Input focus window hint and attribute
+ *
+ *  Input focus [window hint](@ref GLFW_FOCUSED_hint) or
+ *  [window attribute](@ref GLFW_FOCUSED_attrib).
+ */
+#define GLFW_FOCUSED                0x00020001
+/*! @brief Window iconification window attribute
+ *
+ *  Window iconification [window attribute](@ref GLFW_ICONIFIED_attrib).
+ */
+#define GLFW_ICONIFIED              0x00020002
+/*! @brief Window resize-ability window hint and attribute
+ *
+ *  Window resize-ability [window hint](@ref GLFW_RESIZABLE_hint) and
+ *  [window attribute](@ref GLFW_RESIZABLE_attrib).
+ */
+#define GLFW_RESIZABLE              0x00020003
+/*! @brief Window visibility window hint and attribute
+ *
+ *  Window visibility [window hint](@ref GLFW_VISIBLE_hint) and
+ *  [window attribute](@ref GLFW_VISIBLE_attrib).
+ */
+#define GLFW_VISIBLE                0x00020004
+/*! @brief Window decoration window hint and attribute
+ *
+ *  Window decoration [window hint](@ref GLFW_DECORATED_hint) and
+ *  [window attribute](@ref GLFW_DECORATED_attrib).
+ */
+#define GLFW_DECORATED              0x00020005
+/*! @brief Window auto-iconification window hint and attribute
+ *
+ *  Window auto-iconification [window hint](@ref GLFW_AUTO_ICONIFY_hint) and
+ *  [window attribute](@ref GLFW_AUTO_ICONIFY_attrib).
+ */
+#define GLFW_AUTO_ICONIFY           0x00020006
+/*! @brief Window decoration window hint and attribute
+ *
+ *  Window decoration [window hint](@ref GLFW_FLOATING_hint) and
+ *  [window attribute](@ref GLFW_FLOATING_attrib).
+ */
+#define GLFW_FLOATING               0x00020007
+/*! @brief Window maximization window hint and attribute
+ *
+ *  Window maximization [window hint](@ref GLFW_MAXIMIZED_hint) and
+ *  [window attribute](@ref GLFW_MAXIMIZED_attrib).
+ */
+#define GLFW_MAXIMIZED              0x00020008
+/*! @brief Cursor centering window hint
+ *
+ *  Cursor centering [window hint](@ref GLFW_CENTER_CURSOR_hint).
+ */
+#define GLFW_CENTER_CURSOR          0x00020009
+/*! @brief Window framebuffer transparency hint and attribute
+ *
+ *  Window framebuffer transparency
+ *  [window hint](@ref GLFW_TRANSPARENT_FRAMEBUFFER_hint) and
+ *  [window attribute](@ref GLFW_TRANSPARENT_FRAMEBUFFER_attrib).
+ */
+#define GLFW_TRANSPARENT_FRAMEBUFFER 0x0002000A
+/*! @brief Mouse cursor hover window attribute.
+ *
+ *  Mouse cursor hover [window attribute](@ref GLFW_HOVERED_attrib).
+ */
+#define GLFW_HOVERED                0x0002000B
+/*! @brief Input focus on calling show window hint and attribute
+ *
+ *  Input focus [window hint](@ref GLFW_FOCUS_ON_SHOW_hint) or
+ *  [window attribute](@ref GLFW_FOCUS_ON_SHOW_attrib).
+ */
+#define GLFW_FOCUS_ON_SHOW          0x0002000C
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_RED_BITS).
+ */
+#define GLFW_RED_BITS               0x00021001
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_GREEN_BITS).
+ */
+#define GLFW_GREEN_BITS             0x00021002
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_BLUE_BITS).
+ */
+#define GLFW_BLUE_BITS              0x00021003
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ALPHA_BITS).
+ */
+#define GLFW_ALPHA_BITS             0x00021004
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_DEPTH_BITS).
+ */
+#define GLFW_DEPTH_BITS             0x00021005
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_STENCIL_BITS).
+ */
+#define GLFW_STENCIL_BITS           0x00021006
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_RED_BITS).
+ */
+#define GLFW_ACCUM_RED_BITS         0x00021007
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_GREEN_BITS).
+ */
+#define GLFW_ACCUM_GREEN_BITS       0x00021008
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_BLUE_BITS).
+ */
+#define GLFW_ACCUM_BLUE_BITS        0x00021009
+/*! @brief Framebuffer bit depth hint.
+ *
+ *  Framebuffer bit depth [hint](@ref GLFW_ACCUM_ALPHA_BITS).
+ */
+#define GLFW_ACCUM_ALPHA_BITS       0x0002100A
+/*! @brief Framebuffer auxiliary buffer hint.
+ *
+ *  Framebuffer auxiliary buffer [hint](@ref GLFW_AUX_BUFFERS).
+ */
+#define GLFW_AUX_BUFFERS            0x0002100B
+/*! @brief OpenGL stereoscopic rendering hint.
+ *
+ *  OpenGL stereoscopic rendering [hint](@ref GLFW_STEREO).
+ */
+#define GLFW_STEREO                 0x0002100C
+/*! @brief Framebuffer MSAA samples hint.
+ *
+ *  Framebuffer MSAA samples [hint](@ref GLFW_SAMPLES).
+ */
+#define GLFW_SAMPLES                0x0002100D
+/*! @brief Framebuffer sRGB hint.
+ *
+ *  Framebuffer sRGB [hint](@ref GLFW_SRGB_CAPABLE).
+ */
+#define GLFW_SRGB_CAPABLE           0x0002100E
+/*! @brief Monitor refresh rate hint.
+ *
+ *  Monitor refresh rate [hint](@ref GLFW_REFRESH_RATE).
+ */
+#define GLFW_REFRESH_RATE           0x0002100F
+/*! @brief Framebuffer double buffering hint.
+ *
+ *  Framebuffer double buffering [hint](@ref GLFW_DOUBLEBUFFER).
+ */
+#define GLFW_DOUBLEBUFFER           0x00021010
+/*! @brief Context client API hint and attribute.
+ *
+ *  Context client API [hint](@ref GLFW_CLIENT_API_hint) and
+ *  [attribute](@ref GLFW_CLIENT_API_attrib).
+ */
+#define GLFW_CLIENT_API             0x00022001
+/*! @brief Context client API major version hint and attribute.
+ *
+ *  Context client API major version [hint](@ref GLFW_CONTEXT_VERSION_MAJOR_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_VERSION_MAJOR_attrib).
+ */
+#define GLFW_CONTEXT_VERSION_MAJOR  0x00022002
+/*! @brief Context client API minor version hint and attribute.
+ *
+ *  Context client API minor version [hint](@ref GLFW_CONTEXT_VERSION_MINOR_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_VERSION_MINOR_attrib).
+ */
+#define GLFW_CONTEXT_VERSION_MINOR  0x00022003
+/*! @brief Context client API revision number hint and attribute.
+ *
+ *  Context client API revision number
+ *  [attribute](@ref GLFW_CONTEXT_REVISION_attrib).
+ */
+#define GLFW_CONTEXT_REVISION       0x00022004
+/*! @brief Context robustness hint and attribute.
+ *
+ *  Context client API revision number [hint](@ref GLFW_CONTEXT_ROBUSTNESS_hint)
+ *  and [attribute](@ref GLFW_CONTEXT_ROBUSTNESS_attrib).
+ */
+#define GLFW_CONTEXT_ROBUSTNESS     0x00022005
+/*! @brief OpenGL forward-compatibility hint and attribute.
+ *
+ *  OpenGL forward-compatibility [hint](@ref GLFW_OPENGL_FORWARD_COMPAT_hint)
+ *  and [attribute](@ref GLFW_OPENGL_FORWARD_COMPAT_attrib).
+ */
+#define GLFW_OPENGL_FORWARD_COMPAT  0x00022006
+/*! @brief Debug mode context hint and attribute.
+ *
+ *  Debug mode context [hint](@ref GLFW_OPENGL_DEBUG_CONTEXT_hint) and
+ *  [attribute](@ref GLFW_OPENGL_DEBUG_CONTEXT_attrib).
+ */
+#define GLFW_OPENGL_DEBUG_CONTEXT   0x00022007
+/*! @brief OpenGL profile hint and attribute.
+ *
+ *  OpenGL profile [hint](@ref GLFW_OPENGL_PROFILE_hint) and
+ *  [attribute](@ref GLFW_OPENGL_PROFILE_attrib).
+ */
+#define GLFW_OPENGL_PROFILE         0x00022008
+/*! @brief Context flush-on-release hint and attribute.
+ *
+ *  Context flush-on-release [hint](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_attrib).
+ */
+#define GLFW_CONTEXT_RELEASE_BEHAVIOR 0x00022009
+/*! @brief Context error suppression hint and attribute.
+ *
+ *  Context error suppression [hint](@ref GLFW_CONTEXT_NO_ERROR_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_NO_ERROR_attrib).
+ */
+#define GLFW_CONTEXT_NO_ERROR       0x0002200A
+/*! @brief Context creation API hint and attribute.
+ *
+ *  Context creation API [hint](@ref GLFW_CONTEXT_CREATION_API_hint) and
+ *  [attribute](@ref GLFW_CONTEXT_CREATION_API_attrib).
+ */
+#define GLFW_CONTEXT_CREATION_API   0x0002200B
+/*! @brief Window content area scaling window
+ *  [window hint](@ref GLFW_SCALE_TO_MONITOR).
+ */
+#define GLFW_SCALE_TO_MONITOR       0x0002200C
+/*! @brief macOS specific
+ *  [window hint](@ref GLFW_COCOA_RETINA_FRAMEBUFFER_hint).
+ */
+#define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
+/*! @brief macOS specific
+ *  [window hint](@ref GLFW_COCOA_FRAME_NAME_hint).
+ */
+#define GLFW_COCOA_FRAME_NAME         0x00023002
+/*! @brief macOS specific
+ *  [window hint](@ref GLFW_COCOA_GRAPHICS_SWITCHING_hint).
+ */
+#define GLFW_COCOA_GRAPHICS_SWITCHING 0x00023003
+/*! @brief X11 specific
+ *  [window hint](@ref GLFW_X11_CLASS_NAME_hint).
+ */
+#define GLFW_X11_CLASS_NAME         0x00024001
+/*! @brief X11 specific
+ *  [window hint](@ref GLFW_X11_CLASS_NAME_hint).
+ */
+#define GLFW_X11_INSTANCE_NAME      0x00024002
+/*! @} */
+#define GLFW_NO_API                          0
+#define GLFW_OPENGL_API             0x00030001
+#define GLFW_OPENGL_ES_API          0x00030002
+#define GLFW_NO_ROBUSTNESS                   0
+#define GLFW_NO_RESET_NOTIFICATION  0x00031001
+#define GLFW_LOSE_CONTEXT_ON_RESET  0x00031002
+#define GLFW_OPENGL_ANY_PROFILE              0
+#define GLFW_OPENGL_CORE_PROFILE    0x00032001
+#define GLFW_OPENGL_COMPAT_PROFILE  0x00032002
+#define GLFW_CURSOR                 0x00033001
+#define GLFW_STICKY_KEYS            0x00033002
+#define GLFW_STICKY_MOUSE_BUTTONS   0x00033003
+#define GLFW_LOCK_KEY_MODS          0x00033004
+#define GLFW_RAW_MOUSE_MOTION       0x00033005
+#define GLFW_CURSOR_NORMAL          0x00034001
+#define GLFW_CURSOR_HIDDEN          0x00034002
+#define GLFW_CURSOR_DISABLED        0x00034003
+#define GLFW_ANY_RELEASE_BEHAVIOR            0
+#define GLFW_RELEASE_BEHAVIOR_FLUSH 0x00035001
+#define GLFW_RELEASE_BEHAVIOR_NONE  0x00035002
+#define GLFW_NATIVE_CONTEXT_API     0x00036001
+#define GLFW_EGL_CONTEXT_API        0x00036002
+#define GLFW_OSMESA_CONTEXT_API     0x00036003
+/*! @defgroup shapes Standard cursor shapes
+ *  @brief Standard system cursor shapes.
+ *
+ *  See [standard cursor creation](@ref cursor_standard) for how these are used.
+ *
+ *  @ingroup input
+ *  @{ */
+/*! @brief The regular arrow cursor shape.
+ *
+ *  The regular arrow cursor.
+ */
+#define GLFW_ARROW_CURSOR           0x00036001
+/*! @brief The text input I-beam cursor shape.
+ *
+ *  The text input I-beam cursor shape.
+ */
+#define GLFW_IBEAM_CURSOR           0x00036002
+/*! @brief The crosshair shape.
+ *
+ *  The crosshair shape.
+ */
+#define GLFW_CROSSHAIR_CURSOR       0x00036003
+/*! @brief The hand shape.
+ *
+ *  The hand shape.
+ */
+#define GLFW_HAND_CURSOR            0x00036004
+/*! @brief The horizontal resize arrow shape.
+ *
+ *  The horizontal resize arrow shape.
+ */
+#define GLFW_HRESIZE_CURSOR         0x00036005
+/*! @brief The vertical resize arrow shape.
+ *
+ *  The vertical resize arrow shape.
+ */
+#define GLFW_VRESIZE_CURSOR         0x00036006
+/*! @} */
+#define GLFW_CONNECTED              0x00040001
+#define GLFW_DISCONNECTED           0x00040002
+/*! @addtogroup init
+ *  @{ */
+/*! @brief Joystick hat buttons init hint.
+ *
+ *  Joystick hat buttons [init hint](@ref GLFW_JOYSTICK_HAT_BUTTONS).
+ */
+#define GLFW_JOYSTICK_HAT_BUTTONS   0x00050001
+/*! @brief macOS specific init hint.
+ *
+ *  macOS specific [init hint](@ref GLFW_COCOA_CHDIR_RESOURCES_hint).
+ */
+#define GLFW_COCOA_CHDIR_RESOURCES  0x00051001
+/*! @brief macOS specific init hint.
+ *
+ *  macOS specific [init hint](@ref GLFW_COCOA_MENUBAR_hint).
+ */
+#define GLFW_COCOA_MENUBAR          0x00051002
+/*! @} */
+#define GLFW_DONT_CARE              -1
+/*************************************************************************
+ * GLFW API types
+ *************************************************************************/
+/*! @brief Client API function pointer type.
+ *
+ *  Generic function pointer used for returning client API function pointers
+ *  without forcing a cast from a regular pointer.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwGetProcAddress
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+typedef void (*GLFWglproc)(void);
+/*! @brief Vulkan API function pointer type.
+ *
+ *  Generic function pointer used for returning Vulkan API function pointers
+ *  without forcing a cast from a regular pointer.
+ *
+ *  @sa @ref vulkan_proc
+ *  @sa @ref glfwGetInstanceProcAddress
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+typedef void (*GLFWvkproc)(void);
+/*! @brief Opaque monitor object.
+ *
+ *  Opaque monitor object.
+ *
+ *  @see @ref monitor_object
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWmonitor GLFWmonitor;
+/*! @brief Opaque window object.
+ *
+ *  Opaque window object.
+ *
+ *  @see @ref window_object
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef struct GLFWwindow GLFWwindow;
+/*! @brief Opaque cursor object.
+ *
+ *  Opaque cursor object.
+ *
+ *  @see @ref cursor_object
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef struct GLFWcursor GLFWcursor;
+/*! @brief The function pointer type for error callbacks.
+ *
+ *  This is the function pointer type for error callbacks.  An error callback
+ *  function has the following signature:
+ *  @code
+ *  void callback_name(int error_code, const char* description)
+ *  @endcode
+ *
+ *  @param[in] error_code An [error code](@ref errors).  Future releases may add
+ *  more error codes.
+ *  @param[in] description A UTF-8 encoded string describing the error.
+ *
+ *  @pointer_lifetime The error description string is valid until the callback
+ *  function returns.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwSetErrorCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+typedef void (* GLFWerrorfun)(int error_code, const char* description);
+/*! @brief The function pointer type for window position callbacks.
+ *
+ *  This is the function pointer type for window position callbacks.  A window
+ *  position callback function has the following signature:
+ *  @code
+ *  void callback_name(GLFWwindow* window, int xpos, int ypos)
+ *  @endcode
+ *
+ *  @param[in] window The window that was moved.
+ *  @param[in] xpos The new x-coordinate, in screen coordinates, of the
+ *  upper-left corner of the content area of the window.
+ *  @param[in] ypos The new y-coordinate, in screen coordinates, of the
+ *  upper-left corner of the content area of the window.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwSetWindowPosCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowposfun)(GLFWwindow* window, int xpos, int ypos);
+/*! @brief The function pointer type for window size callbacks.
+ *
+ *  This is the function pointer type for window size callbacks.  A window size
+ *  callback function has the following signature:
+ *  @code
+ *  void callback_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *
+ *  @param[in] window The window that was resized.
+ *  @param[in] width The new width, in screen coordinates, of the window.
+ *  @param[in] height The new height, in screen coordinates, of the window.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwSetWindowSizeCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowsizefun)(GLFWwindow* window, int width, int height);
+/*! @brief The function pointer type for window close callbacks.
+ *
+ *  This is the function pointer type for window close callbacks.  A window
+ *  close callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window)
+ *  @endcode
+ *
+ *  @param[in] window The window that the user attempted to close.
+ *
+ *  @sa @ref window_close
+ *  @sa @ref glfwSetWindowCloseCallback
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowclosefun)(GLFWwindow* window);
+/*! @brief The function pointer type for window content refresh callbacks.
+ *
+ *  This is the function pointer type for window content refresh callbacks.
+ *  A window content refresh callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window);
+ *  @endcode
+ *
+ *  @param[in] window The window whose content needs to be refreshed.
+ *
+ *  @sa @ref window_refresh
+ *  @sa @ref glfwSetWindowRefreshCallback
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowrefreshfun)(GLFWwindow* window);
+/*! @brief The function pointer type for window focus callbacks.
+ *
+ *  This is the function pointer type for window focus callbacks.  A window
+ *  focus callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int focused)
+ *  @endcode
+ *
+ *  @param[in] window The window that gained or lost input focus.
+ *  @param[in] focused `GLFW_TRUE` if the window was given input focus, or
+ *  `GLFW_FALSE` if it lost it.
+ *
+ *  @sa @ref window_focus
+ *  @sa @ref glfwSetWindowFocusCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowfocusfun)(GLFWwindow* window, int focused);
+/*! @brief The function pointer type for window iconify callbacks.
+ *
+ *  This is the function pointer type for window iconify callbacks.  A window
+ *  iconify callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int iconified)
+ *  @endcode
+ *
+ *  @param[in] window The window that was iconified or restored.
+ *  @param[in] iconified `GLFW_TRUE` if the window was iconified, or
+ *  `GLFW_FALSE` if it was restored.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwSetWindowIconifyCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowiconifyfun)(GLFWwindow* window, int iconified);
+/*! @brief The function pointer type for window maximize callbacks.
+ *
+ *  This is the function pointer type for window maximize callbacks.  A window
+ *  maximize callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int maximized)
+ *  @endcode
+ *
+ *  @param[in] window The window that was maximized or restored.
+ *  @param[in] maximized `GLFW_TRUE` if the window was maximized, or
+ *  `GLFW_FALSE` if it was restored.
+ *
+ *  @sa @ref window_maximize
+ *  @sa glfwSetWindowMaximizeCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowmaximizefun)(GLFWwindow* window, int maximized);
+/*! @brief The function pointer type for framebuffer size callbacks.
+ *
+ *  This is the function pointer type for framebuffer size callbacks.
+ *  A framebuffer size callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *
+ *  @param[in] window The window whose framebuffer was resized.
+ *  @param[in] width The new width, in pixels, of the framebuffer.
+ *  @param[in] height The new height, in pixels, of the framebuffer.
+ *
+ *  @sa @ref window_fbsize
+ *  @sa @ref glfwSetFramebufferSizeCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWframebuffersizefun)(GLFWwindow* window, int width, int height);
+/*! @brief The function pointer type for window content scale callbacks.
+ *
+ *  This is the function pointer type for window content scale callbacks.
+ *  A window content scale callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, float xscale, float yscale)
+ *  @endcode
+ *
+ *  @param[in] window The window whose content scale changed.
+ *  @param[in] xscale The new x-axis content scale of the window.
+ *  @param[in] yscale The new y-axis content scale of the window.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwSetWindowContentScaleCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+typedef void (* GLFWwindowcontentscalefun)(GLFWwindow* window, float xscale, float yscale);
+/*! @brief The function pointer type for mouse button callbacks.
+ *
+ *  This is the function pointer type for mouse button callback functions.
+ *  A mouse button callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int button, int action, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] button The [mouse button](@ref buttons) that was pressed or
+ *  released.
+ *  @param[in] action One of `GLFW_PRESS` or `GLFW_RELEASE`.  Future releases
+ *  may add more actions.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_mouse_button
+ *  @sa @ref glfwSetMouseButtonCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle and modifier mask parameters.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWmousebuttonfun)(GLFWwindow* window, int button, int action, int mods);
+/*! @brief The function pointer type for cursor position callbacks.
+ *
+ *  This is the function pointer type for cursor position callbacks.  A cursor
+ *  position callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, double xpos, double ypos);
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] xpos The new cursor x-coordinate, relative to the left edge of
+ *  the content area.
+ *  @param[in] ypos The new cursor y-coordinate, relative to the top edge of the
+ *  content area.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwSetCursorPosCallback
+ *
+ *  @since Added in version 3.0.  Replaces `GLFWmouseposfun`.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcursorposfun)(GLFWwindow* window, double xpos, double ypos);
+/*! @brief The function pointer type for cursor enter/leave callbacks.
+ *
+ *  This is the function pointer type for cursor enter/leave callbacks.
+ *  A cursor enter/leave callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int entered)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] entered `GLFW_TRUE` if the cursor entered the window's content
+ *  area, or `GLFW_FALSE` if it left it.
+ *
+ *  @sa @ref cursor_enter
+ *  @sa @ref glfwSetCursorEnterCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcursorenterfun)(GLFWwindow* window, int entered);
+/*! @brief The function pointer type for scroll callbacks.
+ *
+ *  This is the function pointer type for scroll callbacks.  A scroll callback
+ *  function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, double xoffset, double yoffset)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] xoffset The scroll offset along the x-axis.
+ *  @param[in] yoffset The scroll offset along the y-axis.
+ *
+ *  @sa @ref scrolling
+ *  @sa @ref glfwSetScrollCallback
+ *
+ *  @since Added in version 3.0.  Replaces `GLFWmousewheelfun`.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWscrollfun)(GLFWwindow* window, double xoffset, double yoffset);
+/*! @brief The function pointer type for keyboard key callbacks.
+ *
+ *  This is the function pointer type for keyboard key callbacks.  A keyboard
+ *  key callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int key, int scancode, int action, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] key The [keyboard key](@ref keys) that was pressed or released.
+ *  @param[in] scancode The system-specific scancode of the key.
+ *  @param[in] action `GLFW_PRESS`, `GLFW_RELEASE` or `GLFW_REPEAT`.  Future
+ *  releases may add more actions.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_key
+ *  @sa @ref glfwSetKeyCallback
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle, scancode and modifier mask parameters.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWkeyfun)(GLFWwindow* window, int key, int scancode, int action, int mods);
+/*! @brief The function pointer type for Unicode character callbacks.
+ *
+ *  This is the function pointer type for Unicode character callbacks.
+ *  A Unicode character callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] codepoint The Unicode code point of the character.
+ *
+ *  @sa @ref input_char
+ *  @sa @ref glfwSetCharCallback
+ *
+ *  @since Added in version 2.4.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcharfun)(GLFWwindow* window, unsigned int codepoint);
+/*! @brief The function pointer type for Unicode character with modifiers
+ *  callbacks.
+ *
+ *  This is the function pointer type for Unicode character with modifiers
+ *  callbacks.  It is called for each input character, regardless of what
+ *  modifier keys are held down.  A Unicode character with modifiers callback
+ *  function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint, int mods)
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] codepoint The Unicode code point of the character.
+ *  @param[in] mods Bit field describing which [modifier keys](@ref mods) were
+ *  held down.
+ *
+ *  @sa @ref input_char
+ *  @sa @ref glfwSetCharModsCallback
+ *
+ *  @deprecated Scheduled for removal in version 4.0.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWcharmodsfun)(GLFWwindow* window, unsigned int codepoint, int mods);
+/*! @brief The function pointer type for path drop callbacks.
+ *
+ *  This is the function pointer type for path drop callbacks.  A path drop
+ *  callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWwindow* window, int path_count, const char* paths[])
+ *  @endcode
+ *
+ *  @param[in] window The window that received the event.
+ *  @param[in] path_count The number of dropped paths.
+ *  @param[in] paths The UTF-8 encoded file and/or directory path names.
+ *
+ *  @pointer_lifetime The path array and its strings are valid until the
+ *  callback function returns.
+ *
+ *  @sa @ref path_drop
+ *  @sa @ref glfwSetDropCallback
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWdropfun)(GLFWwindow* window, int path_count, const char* paths[]);
+/*! @brief The function pointer type for monitor configuration callbacks.
+ *
+ *  This is the function pointer type for monitor configuration callbacks.
+ *  A monitor callback function has the following signature:
+ *  @code
+ *  void function_name(GLFWmonitor* monitor, int event)
+ *  @endcode
+ *
+ *  @param[in] monitor The monitor that was connected or disconnected.
+ *  @param[in] event One of `GLFW_CONNECTED` or `GLFW_DISCONNECTED`.  Future
+ *  releases may add more events.
+ *
+ *  @sa @ref monitor_event
+ *  @sa @ref glfwSetMonitorCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef void (* GLFWmonitorfun)(GLFWmonitor* monitor, int event);
+/*! @brief The function pointer type for joystick configuration callbacks.
+ *
+ *  This is the function pointer type for joystick configuration callbacks.
+ *  A joystick configuration callback function has the following signature:
+ *  @code
+ *  void function_name(int jid, int event)
+ *  @endcode
+ *
+ *  @param[in] jid The joystick that was connected or disconnected.
+ *  @param[in] event One of `GLFW_CONNECTED` or `GLFW_DISCONNECTED`.  Future
+ *  releases may add more events.
+ *
+ *  @sa @ref joystick_event
+ *  @sa @ref glfwSetJoystickCallback
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+typedef void (* GLFWjoystickfun)(int jid, int event);
+/*! @brief Video mode type.
+ *
+ *  This describes a single video mode.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoMode
+ *  @sa @ref glfwGetVideoModes
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added refresh rate member.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWvidmode
+{
+    /*! The width, in screen coordinates, of the video mode.
+     */
+    int width;
+    /*! The height, in screen coordinates, of the video mode.
+     */
+    int height;
+    /*! The bit depth of the red channel of the video mode.
+     */
+    int redBits;
+    /*! The bit depth of the green channel of the video mode.
+     */
+    int greenBits;
+    /*! The bit depth of the blue channel of the video mode.
+     */
+    int blueBits;
+    /*! The refresh rate, in Hz, of the video mode.
+     */
+    int refreshRate;
+} GLFWvidmode;
+/*! @brief Gamma ramp.
+ *
+ *  This describes the gamma ramp for a monitor.
+ *
+ *  @sa @ref monitor_gamma
+ *  @sa @ref glfwGetGammaRamp
+ *  @sa @ref glfwSetGammaRamp
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+typedef struct GLFWgammaramp
+{
+    /*! An array of value describing the response of the red channel.
+     */
+    unsigned short* red;
+    /*! An array of value describing the response of the green channel.
+     */
+    unsigned short* green;
+    /*! An array of value describing the response of the blue channel.
+     */
+    unsigned short* blue;
+    /*! The number of elements in each array.
+     */
+    unsigned int size;
+} GLFWgammaramp;
+/*! @brief Image data.
+ *
+ *  This describes a single 2D image.  See the documentation for each related
+ *  function what the expected pixel format is.
+ *
+ *  @sa @ref cursor_custom
+ *  @sa @ref window_icon
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Removed format and bytes-per-pixel members.
+ *
+ *  @ingroup window
+ */
+typedef struct GLFWimage
+{
+    /*! The width, in pixels, of this image.
+     */
+    int width;
+    /*! The height, in pixels, of this image.
+     */
+    int height;
+    /*! The pixel data of this image, arranged left-to-right, top-to-bottom.
+     */
+    unsigned char* pixels;
+} GLFWimage;
+/*! @brief Gamepad input state
+ *
+ *  This describes the input state of a gamepad.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwGetGamepadState
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+typedef struct GLFWgamepadstate
+{
+    /*! The states of each [gamepad button](@ref gamepad_buttons), `GLFW_PRESS`
+     *  or `GLFW_RELEASE`.
+     */
+    unsigned char buttons[15];
+    /*! The states of each [gamepad axis](@ref gamepad_axes), in the range -1.0
+     *  to 1.0 inclusive.
+     */
+    float axes[6];
+} GLFWgamepadstate;
+/*************************************************************************
+ * GLFW API functions
+ *************************************************************************/
+/*! @brief Initializes the GLFW library.
+ *
+ *  This function initializes the GLFW library.  Before most GLFW functions can
+ *  be used, GLFW must be initialized, and before an application terminates GLFW
+ *  should be terminated in order to free any resources allocated during or
+ *  after initialization.
+ *
+ *  If this function fails, it calls @ref glfwTerminate before returning.  If it
+ *  succeeds, you should call @ref glfwTerminate before the application exits.
+ *
+ *  Additional calls to this function after successful initialization but before
+ *  termination will return `GLFW_TRUE` immediately.
+ *
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos This function will change the current directory of the
+ *  application to the `Contents/Resources` subdirectory of the application's
+ *  bundle, if present.  This can be disabled with the @ref
+ *  GLFW_COCOA_CHDIR_RESOURCES init hint.
+ *
+ *  @remark @x11 This function will set the `LC_CTYPE` category of the
+ *  application locale according to the current environment if that category is
+ *  still "C".  This is because the "C" locale breaks Unicode text input.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref intro_init
+ *  @sa @ref glfwTerminate
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwInit(void);
+/*! @brief Terminates the GLFW library.
+ *
+ *  This function destroys all remaining windows and cursors, restores any
+ *  modified gamma ramps and frees any other allocated resources.  Once this
+ *  function is called, you must again call @ref glfwInit successfully before
+ *  you will be able to use most GLFW functions.
+ *
+ *  If GLFW has been successfully initialized, this function should be called
+ *  before the application exits.  If initialization fails, there is no need to
+ *  call this function, as it is called by @ref glfwInit before it returns
+ *  failure.
+ *
+ *  This function has no effect if GLFW is not initialized.
+ *
+ *  @errors Possible errors include @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @warning The contexts of any remaining windows must not be current on any
+ *  other thread when this function is called.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref intro_init
+ *  @sa @ref glfwInit
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwTerminate(void);
+/*! @brief Sets the specified init hint to the desired value.
+ *
+ *  This function sets hints for the next initialization of GLFW.
+ *
+ *  The values you set hints to are never reset by GLFW, but they only take
+ *  effect during initialization.  Once GLFW has been initialized, any values
+ *  you set will be ignored until the library is terminated and initialized
+ *  again.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [init hint](@ref init_hints) to set.
+ *  @param[in] value The new value of the init hint.
+ *
+ *  @errors Possible errors include @ref GLFW_INVALID_ENUM and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @remarks This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa init_hints
+ *  @sa glfwInit
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwInitHint(int hint, int value);
+/*! @brief Retrieves the version of the GLFW library.
+ *
+ *  This function retrieves the major, minor and revision numbers of the GLFW
+ *  library.  It is intended for when you are using GLFW as a shared library and
+ *  want to ensure that you are using the minimum required version.
+ *
+ *  Any or all of the version arguments may be `NULL`.
+ *
+ *  @param[out] major Where to store the major version number, or `NULL`.
+ *  @param[out] minor Where to store the minor version number, or `NULL`.
+ *  @param[out] rev Where to store the revision number, or `NULL`.
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref intro_version
+ *  @sa @ref glfwGetVersionString
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev);
+/*! @brief Returns a string describing the compile-time configuration.
+ *
+ *  This function returns the compile-time generated
+ *  [version string](@ref intro_version_string) of the GLFW library binary.  It
+ *  describes the version, platform, compiler and any platform-specific
+ *  compile-time options.  It should not be confused with the OpenGL or OpenGL
+ *  ES version string, queried with `glGetString`.
+ *
+ *  __Do not use the version string__ to parse the GLFW library version.  The
+ *  @ref glfwGetVersion function provides the version of the running library
+ *  binary in numerical format.
+ *
+ *  @return The ASCII encoded GLFW version string.
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @pointer_lifetime The returned string is static and compile-time generated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref intro_version
+ *  @sa @ref glfwGetVersion
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI const char* glfwGetVersionString(void);
+/*! @brief Returns and clears the last error for the calling thread.
+ *
+ *  This function returns and clears the [error code](@ref errors) of the last
+ *  error that occurred on the calling thread, and optionally a UTF-8 encoded
+ *  human-readable description of it.  If no error has occurred since the last
+ *  call, it returns @ref GLFW_NO_ERROR (zero) and the description pointer is
+ *  set to `NULL`.
+ *
+ *  @param[in] description Where to store the error description pointer, or `NULL`.
+ *  @return The last error code for the calling thread, or @ref GLFW_NO_ERROR
+ *  (zero).
+ *
+ *  @errors None.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  next error occurs or the library is terminated.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwSetErrorCallback
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup init
+ */
+GLFWAPI int glfwGetError(const char** description);
+/*! @brief Sets the error callback.
+ *
+ *  This function sets the error callback, which is called with an error code
+ *  and a human-readable description each time a GLFW error occurs.
+ *
+ *  The error code is set before the callback is called.  Calling @ref
+ *  glfwGetError from the error callback will return the same value as the error
+ *  code argument.
+ *
+ *  The error callback is called on the thread where the error occurred.  If you
+ *  are using GLFW from multiple threads, your error callback needs to be
+ *  written accordingly.
+ *
+ *  Because the description string may have been generated specifically for that
+ *  error, it is not guaranteed to be valid after the callback has returned.  If
+ *  you wish to use it after the callback returns, you need to make a copy.
+ *
+ *  Once set, the error callback remains set even after the library has been
+ *  terminated.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set.
+ *
+ *  @callback_signature
+ *  @code
+ *  void callback_name(int error_code, const char* description)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [callback pointer type](@ref GLFWerrorfun).
+ *
+ *  @errors None.
+ *
+ *  @remark This function may be called before @ref glfwInit.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref error_handling
+ *  @sa @ref glfwGetError
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup init
+ */
+GLFWAPI GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun callback);
+/*! @brief Returns the currently connected monitors.
+ *
+ *  This function returns an array of handles for all currently connected
+ *  monitors.  The primary monitor is always first in the returned array.  If no
+ *  monitors were found, this function returns `NULL`.
+ *
+ *  @param[out] count Where to store the number of monitors in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of monitor handles, or `NULL` if no monitors were found or
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  monitor configuration changes or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_monitors
+ *  @sa @ref monitor_event
+ *  @sa @ref glfwGetPrimaryMonitor
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitor** glfwGetMonitors(int* count);
+/*! @brief Returns the primary monitor.
+ *
+ *  This function returns the primary monitor.  This is usually the monitor
+ *  where elements like the task bar or global menu bar are located.
+ *
+ *  @return The primary monitor, or `NULL` if no monitors were found or if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @remark The primary monitor is always first in the array returned by @ref
+ *  glfwGetMonitors.
+ *
+ *  @sa @ref monitor_monitors
+ *  @sa @ref glfwGetMonitors
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void);
+/*! @brief Returns the position of the monitor's viewport on the virtual screen.
+ *
+ *  This function returns the position, in screen coordinates, of the upper-left
+ *  corner of the specified monitor.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xpos Where to store the monitor x-coordinate, or `NULL`.
+ *  @param[out] ypos Where to store the monitor y-coordinate, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorPos(GLFWmonitor* monitor, int* xpos, int* ypos);
+/*! @brief Retrieves the work area of the monitor.
+ *
+ *  This function returns the position, in screen coordinates, of the upper-left
+ *  corner of the work area of the specified monitor along with the work area
+ *  size in screen coordinates. The work area is defined as the area of the
+ *  monitor not occluded by the operating system task bar where present. If no
+ *  task bar exists then the work area is the monitor resolution in screen
+ *  coordinates.
+ *
+ *  Any or all of the position and size arguments may be `NULL`.  If an error
+ *  occurs, all non-`NULL` position and size arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xpos Where to store the monitor x-coordinate, or `NULL`.
+ *  @param[out] ypos Where to store the monitor y-coordinate, or `NULL`.
+ *  @param[out] width Where to store the monitor width, or `NULL`.
+ *  @param[out] height Where to store the monitor height, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_workarea
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorWorkarea(GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+/*! @brief Returns the physical size of the monitor.
+ *
+ *  This function returns the size, in millimetres, of the display area of the
+ *  specified monitor.
+ *
+ *  Some systems do not provide accurate monitor size information, either
+ *  because the monitor
+ *  [EDID](https://en.wikipedia.org/wiki/Extended_display_identification_data)
+ *  data is incorrect or because the driver does not report it accurately.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] widthMM Where to store the width, in millimetres, of the
+ *  monitor's display area, or `NULL`.
+ *  @param[out] heightMM Where to store the height, in millimetres, of the
+ *  monitor's display area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @win32 On Windows 8 and earlier the physical size is calculated from
+ *  the current resolution and system DPI instead of querying the monitor EDID data.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* monitor, int* widthMM, int* heightMM);
+/*! @brief Retrieves the content scale for the specified monitor.
+ *
+ *  This function retrieves the content scale for the specified monitor.  The
+ *  content scale is the ratio between the current DPI and the platform's
+ *  default DPI.  This is especially important for text and any UI elements.  If
+ *  the pixel dimensions of your UI scaled by this look appropriate on your
+ *  machine then it should appear at a reasonable size on other machines
+ *  regardless of their DPI and scaling settings.  This relies on the system DPI
+ *  and scaling settings being somewhat correct.
+ *
+ *  The content scale may depend on both the monitor resolution and pixel
+ *  density and on user settings.  It may be very different from the raw DPI
+ *  calculated from the physical size and current resolution.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] xscale Where to store the x-axis content scale, or `NULL`.
+ *  @param[out] yscale Where to store the y-axis content scale, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_scale
+ *  @sa @ref glfwGetWindowContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* monitor, float* xscale, float* yscale);
+/*! @brief Returns the name of the specified monitor.
+ *
+ *  This function returns a human-readable name, encoded as UTF-8, of the
+ *  specified monitor.  The name typically reflects the make and model of the
+ *  monitor and is not guaranteed to be unique among the connected monitors.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The UTF-8 encoded name of the monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_properties
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* monitor);
+/*! @brief Sets the user pointer of the specified monitor.
+ *
+ *  This function sets the user-defined pointer of the specified monitor.  The
+ *  current value is retained until the monitor is disconnected.  The initial
+ *  value is `NULL`.
+ *
+ *  This function may be called from the monitor callback, even for a monitor
+ *  that is being disconnected.
+ *
+ *  @param[in] monitor The monitor whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref monitor_userptr
+ *  @sa @ref glfwGetMonitorUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetMonitorUserPointer(GLFWmonitor* monitor, void* pointer);
+/*! @brief Returns the user pointer of the specified monitor.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified monitor.  The initial value is `NULL`.
+ *
+ *  This function may be called from the monitor callback, even for a monitor
+ *  that is being disconnected.
+ *
+ *  @param[in] monitor The monitor whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref monitor_userptr
+ *  @sa @ref glfwSetMonitorUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void* glfwGetMonitorUserPointer(GLFWmonitor* monitor);
+/*! @brief Sets the monitor configuration callback.
+ *
+ *  This function sets the monitor configuration callback, or removes the
+ *  currently set callback.  This is called when a monitor is connected to or
+ *  disconnected from the system.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWmonitor* monitor, int event)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWmonitorfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_event
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun callback);
+/*! @brief Returns the available video modes for the specified monitor.
+ *
+ *  This function returns an array of all video modes supported by the specified
+ *  monitor.  The returned array is sorted in ascending order, first by color
+ *  bit depth (the sum of all channel depths), then by resolution area (the
+ *  product of width and height), then resolution width and finally by refresh
+ *  rate.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @param[out] count Where to store the number of video modes in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of video modes, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected, this function is called again for that monitor or the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoMode
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Changed to return an array of modes for a specific monitor.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* monitor, int* count);
+/*! @brief Returns the current mode of the specified monitor.
+ *
+ *  This function returns the current video mode of the specified monitor.  If
+ *  you have created a full screen window for that monitor, the return value
+ *  will depend on whether that window is iconified.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The current mode of the monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified monitor is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_modes
+ *  @sa @ref glfwGetVideoModes
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetDesktopMode`.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* monitor);
+/*! @brief Generates a gamma ramp and sets it for the specified monitor.
+ *
+ *  This function generates an appropriately sized gamma ramp from the specified
+ *  exponent and then calls @ref glfwSetGammaRamp with it.  The value must be
+ *  a finite number greater than zero.
+ *
+ *  The software controlled gamma ramp is applied _in addition_ to the hardware
+ *  gamma correction, which today is usually an approximation of sRGB gamma.
+ *  This means that setting a perfectly linear ramp, or gamma 1.0, will produce
+ *  the default (usually sRGB-like) behavior.
+ *
+ *  For gamma correct rendering with OpenGL or OpenGL ES, see the @ref
+ *  GLFW_SRGB_CAPABLE hint.
+ *
+ *  @param[in] monitor The monitor whose gamma ramp to set.
+ *  @param[in] gamma The desired exponent.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma);
+/*! @brief Returns the current gamma ramp for the specified monitor.
+ *
+ *  This function returns the current gamma ramp of the specified monitor.
+ *
+ *  @param[in] monitor The monitor to query.
+ *  @return The current gamma ramp, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_PLATFORM_ERROR while
+ *  returning `NULL`.
+ *
+ *  @pointer_lifetime The returned structure and its arrays are allocated and
+ *  freed by GLFW.  You should not free them yourself.  They are valid until the
+ *  specified monitor is disconnected, this function is called again for that
+ *  monitor or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* monitor);
+/*! @brief Sets the current gamma ramp for the specified monitor.
+ *
+ *  This function sets the current gamma ramp for the specified monitor.  The
+ *  original gamma ramp for that monitor is saved by GLFW the first time this
+ *  function is called and is restored by @ref glfwTerminate.
+ *
+ *  The software controlled gamma ramp is applied _in addition_ to the hardware
+ *  gamma correction, which today is usually an approximation of sRGB gamma.
+ *  This means that setting a perfectly linear ramp, or gamma 1.0, will produce
+ *  the default (usually sRGB-like) behavior.
+ *
+ *  For gamma correct rendering with OpenGL or OpenGL ES, see the @ref
+ *  GLFW_SRGB_CAPABLE hint.
+ *
+ *  @param[in] monitor The monitor whose gamma ramp to set.
+ *  @param[in] ramp The gamma ramp to use.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The size of the specified gamma ramp should match the size of the
+ *  current ramp for that monitor.
+ *
+ *  @remark @win32 The gamma ramp size must be 256.
+ *
+ *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  will thus never be implemented and emits @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified gamma ramp is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref monitor_gamma
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup monitor
+ */
+GLFWAPI void glfwSetGammaRamp(GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+/*! @brief Resets all window hints to their default values.
+ *
+ *  This function resets all window hints to their
+ *  [default values](@ref window_hints_values).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHint
+ *  @sa @ref glfwWindowHintString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwDefaultWindowHints(void);
+/*! @brief Sets the specified window hint to the desired value.
+ *
+ *  This function sets hints for the next call to @ref glfwCreateWindow.  The
+ *  hints, once set, retain their values until changed by a call to this
+ *  function or @ref glfwDefaultWindowHints, or until the library is terminated.
+ *
+ *  Only integer value hints can be set with this function.  String value hints
+ *  are set with @ref glfwWindowHintString.
+ *
+ *  This function does not check whether the specified hint values are valid.
+ *  If you set hints to invalid values this will instead be reported by the next
+ *  call to @ref glfwCreateWindow.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [window hint](@ref window_hints) to set.
+ *  @param[in] value The new value of the window hint.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHintString
+ *  @sa @ref glfwDefaultWindowHints
+ *
+ *  @since Added in version 3.0.  Replaces `glfwOpenWindowHint`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWindowHint(int hint, int value);
+/*! @brief Sets the specified window hint to the desired value.
+ *
+ *  This function sets hints for the next call to @ref glfwCreateWindow.  The
+ *  hints, once set, retain their values until changed by a call to this
+ *  function or @ref glfwDefaultWindowHints, or until the library is terminated.
+ *
+ *  Only string type hints can be set with this function.  Integer value hints
+ *  are set with @ref glfwWindowHint.
+ *
+ *  This function does not check whether the specified hint values are valid.
+ *  If you set hints to invalid values this will instead be reported by the next
+ *  call to @ref glfwCreateWindow.
+ *
+ *  Some hints are platform specific.  These may be set on any platform but they
+ *  will only affect their specific platform.  Other platforms will ignore them.
+ *  Setting these hints requires no platform specific headers or functions.
+ *
+ *  @param[in] hint The [window hint](@ref window_hints) to set.
+ *  @param[in] value The new value of the window hint.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hints
+ *  @sa @ref glfwWindowHint
+ *  @sa @ref glfwDefaultWindowHints
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWindowHintString(int hint, const char* value);
+/*! @brief Creates a window and its associated context.
+ *
+ *  This function creates a window and its associated OpenGL or OpenGL ES
+ *  context.  Most of the options controlling how the window and its context
+ *  should be created are specified with [window hints](@ref window_hints).
+ *
+ *  Successful creation does not change which context is current.  Before you
+ *  can use the newly created context, you need to
+ *  [make it current](@ref context_current).  For information about the `share`
+ *  parameter, see @ref context_sharing.
+ *
+ *  The created window, framebuffer and context may differ from what you
+ *  requested, as not all parameters and hints are
+ *  [hard constraints](@ref window_hints_hard).  This includes the size of the
+ *  window, especially for full screen windows.  To query the actual attributes
+ *  of the created window, framebuffer and context, see @ref
+ *  glfwGetWindowAttrib, @ref glfwGetWindowSize and @ref glfwGetFramebufferSize.
+ *
+ *  To create a full screen window, you need to specify the monitor the window
+ *  will cover.  If no monitor is specified, the window will be windowed mode.
+ *  Unless you have a way for the user to choose a specific monitor, it is
+ *  recommended that you pick the primary monitor.  For more information on how
+ *  to query connected monitors, see @ref monitor_monitors.
+ *
+ *  For full screen windows, the specified size becomes the resolution of the
+ *  window's _desired video mode_.  As long as a full screen window is not
+ *  iconified, the supported video mode most closely matching the desired video
+ *  mode is set for the specified monitor.  For more information about full
+ *  screen windows, including the creation of so called _windowed full screen_
+ *  or _borderless full screen_ windows, see @ref window_windowed_full_screen.
+ *
+ *  Once you have created the window, you can switch it between windowed and
+ *  full screen mode with @ref glfwSetWindowMonitor.  This will not affect its
+ *  OpenGL or OpenGL ES context.
+ *
+ *  By default, newly created windows use the placement recommended by the
+ *  window system.  To create the window at a specific position, make it
+ *  initially invisible using the [GLFW_VISIBLE](@ref GLFW_VISIBLE_hint) window
+ *  hint, set its [position](@ref window_pos) and then [show](@ref window_hide)
+ *  it.
+ *
+ *  As long as at least one full screen window is not iconified, the screensaver
+ *  is prohibited from starting.
+ *
+ *  Window systems put limits on window sizes.  Very large or very small window
+ *  dimensions may be overridden by the window system on creation.  Check the
+ *  actual [size](@ref window_size) after creation.
+ *
+ *  The [swap interval](@ref buffer_swap) is not set during window creation and
+ *  the initial value may vary depending on driver settings and defaults.
+ *
+ *  @param[in] width The desired width, in screen coordinates, of the window.
+ *  This must be greater than zero.
+ *  @param[in] height The desired height, in screen coordinates, of the window.
+ *  This must be greater than zero.
+ *  @param[in] title The initial, UTF-8 encoded window title.
+ *  @param[in] monitor The monitor to use for full screen mode, or `NULL` for
+ *  windowed mode.
+ *  @param[in] share The window whose context to share resources with, or `NULL`
+ *  to not share resources.
+ *  @return The handle of the created window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_INVALID_VALUE, @ref GLFW_API_UNAVAILABLE, @ref
+ *  GLFW_VERSION_UNAVAILABLE, @ref GLFW_FORMAT_UNAVAILABLE and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @win32 Window creation will fail if the Microsoft GDI software
+ *  OpenGL implementation is the only one available.
+ *
+ *  @remark @win32 If the executable has an icon resource named `GLFW_ICON,` it
+ *  will be set as the initial icon for the window.  If no such icon is present,
+ *  the `IDI_APPLICATION` icon will be used instead.  To set a different icon,
+ *  see @ref glfwSetWindowIcon.
+ *
+ *  @remark @win32 The context to share resources with must not be current on
+ *  any other thread.
+ *
+ *  @remark @macos The OS only supports forward-compatible core profile contexts
+ *  for OpenGL versions 3.2 and later.  Before creating an OpenGL context of
+ *  version 3.2 or later you must set the
+ *  [GLFW_OPENGL_FORWARD_COMPAT](@ref GLFW_OPENGL_FORWARD_COMPAT_hint) and
+ *  [GLFW_OPENGL_PROFILE](@ref GLFW_OPENGL_PROFILE_hint) hints accordingly.
+ *  OpenGL 3.0 and 3.1 contexts are not supported at all on macOS.
+ *
+ *  @remark @macos The GLFW window has no icon, as it is not a document
+ *  window, but the dock icon will be the same as the application bundle's icon.
+ *  For more information on bundles, see the
+ *  [Bundle Programming Guide](https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/)
+ *  in the Mac Developer Library.
+ *
+ *  @remark @macos The first time a window is created the menu bar is created.
+ *  If GLFW finds a `MainMenu.nib` it is loaded and assumed to contain a menu
+ *  bar.  Otherwise a minimal menu bar is created manually with common commands
+ *  like Hide, Quit and About.  The About entry opens a minimal about dialog
+ *  with information from the application's bundle.  Menu bar creation can be
+ *  disabled entirely with the @ref GLFW_COCOA_MENUBAR init hint.
+ *
+ *  @remark @macos On OS X 10.10 and later the window frame will not be rendered
+ *  at full resolution on Retina displays unless the
+ *  [GLFW_COCOA_RETINA_FRAMEBUFFER](@ref GLFW_COCOA_RETINA_FRAMEBUFFER_hint)
+ *  hint is `GLFW_TRUE` and the `NSHighResolutionCapable` key is enabled in the
+ *  application bundle's `Info.plist`.  For more information, see
+ *  [High Resolution Guidelines for OS X](https://developer.apple.com/library/mac/documentation/GraphicsAnimation/Conceptual/HighResolutionOSX/Explained/Explained.html)
+ *  in the Mac Developer Library.  The GLFW test and example programs use
+ *  a custom `Info.plist` template for this, which can be found as
+ *  `CMake/MacOSXBundleInfo.plist.in` in the source tree.
+ *
+ *  @remark @macos When activating frame autosaving with
+ *  [GLFW_COCOA_FRAME_NAME](@ref GLFW_COCOA_FRAME_NAME_hint), the specified
+ *  window size and position may be overridden by previously saved values.
+ *
+ *  @remark @x11 Some window managers will not respect the placement of
+ *  initially hidden windows.
+ *
+ *  @remark @x11 Due to the asynchronous nature of X11, it may take a moment for
+ *  a window to reach its requested state.  This means you may not be able to
+ *  query the final size, position or other attributes directly after window
+ *  creation.
+ *
+ *  @remark @x11 The class part of the `WM_CLASS` window property will by
+ *  default be set to the window title passed to this function.  The instance
+ *  part will use the contents of the `RESOURCE_NAME` environment variable, if
+ *  present and not empty, or fall back to the window title.  Set the
+ *  [GLFW_X11_CLASS_NAME](@ref GLFW_X11_CLASS_NAME_hint) and
+ *  [GLFW_X11_INSTANCE_NAME](@ref GLFW_X11_INSTANCE_NAME_hint) window hints to
+ *  override this.
+ *
+ *  @remark @wayland Compositors should implement the xdg-decoration protocol
+ *  for GLFW to decorate the window properly.  If this protocol isn't
+ *  supported, or if the compositor prefers client-side decorations, a very
+ *  simple fallback frame will be drawn using the wp_viewporter protocol.  A
+ *  compositor can still emit close, maximize or fullscreen events, using for
+ *  instance a keybind mechanism.  If neither of these protocols is supported,
+ *  the window won't be decorated.
+ *
+ *  @remark @wayland A full screen window will not attempt to change the mode,
+ *  no matter what the requested size or refresh rate.
+ *
+ *  @remark @wayland Screensaver inhibition requires the idle-inhibit protocol
+ *  to be implemented in the user's compositor.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_creation
+ *  @sa @ref glfwDestroyWindow
+ *
+ *  @since Added in version 3.0.  Replaces `glfwOpenWindow`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height, const char* title, GLFWmonitor* monitor, GLFWwindow* share);
+/*! @brief Destroys the specified window and its context.
+ *
+ *  This function destroys the specified window and its context.  On calling
+ *  this function, no further callbacks will be called for that window.
+ *
+ *  If the context of the specified window is current on the main thread, it is
+ *  detached before being destroyed.
+ *
+ *  @param[in] window The window to destroy.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @note The context of the specified window must not be current on any other
+ *  thread when this function is called.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_creation
+ *  @sa @ref glfwCreateWindow
+ *
+ *  @since Added in version 3.0.  Replaces `glfwCloseWindow`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwDestroyWindow(GLFWwindow* window);
+/*! @brief Checks the close flag of the specified window.
+ *
+ *  This function returns the value of the close flag of the specified window.
+ *
+ *  @param[in] window The window to query.
+ *  @return The value of the close flag.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI int glfwWindowShouldClose(GLFWwindow* window);
+/*! @brief Sets the close flag of the specified window.
+ *
+ *  This function sets the value of the close flag of the specified window.
+ *  This can be used to override the user's attempt to close the window, or
+ *  to signal that it should be closed.
+ *
+ *  @param[in] window The window whose flag to change.
+ *  @param[in] value The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowShouldClose(GLFWwindow* window, int value);
+/*! @brief Sets the title of the specified window.
+ *
+ *  This function sets the window title, encoded as UTF-8, of the specified
+ *  window.
+ *
+ *  @param[in] window The window whose title to change.
+ *  @param[in] title The UTF-8 encoded window title.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos The window title will not be updated until the next time you
+ *  process events.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_title
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowTitle(GLFWwindow* window, const char* title);
+/*! @brief Sets the icon for the specified window.
+ *
+ *  This function sets the icon of the specified window.  If passed an array of
+ *  candidate images, those of or closest to the sizes desired by the system are
+ *  selected.  If no images are specified, the window reverts to its default
+ *  icon.
+ *
+ *  The pixels are 32-bit, little-endian, non-premultiplied RGBA, i.e. eight
+ *  bits per channel with the red channel first.  They are arranged canonically
+ *  as packed sequential rows, starting from the top-left corner.
+ *
+ *  The desired image sizes varies depending on platform and system settings.
+ *  The selected images will be rescaled as needed.  Good sizes include 16x16,
+ *  32x32 and 48x48.
+ *
+ *  @param[in] window The window whose icon to set.
+ *  @param[in] count The number of images in the specified array, or zero to
+ *  revert to the default window icon.
+ *  @param[in] images The images to create the icon from.  This is ignored if
+ *  count is zero.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified image data is copied before this function
+ *  returns.
+ *
+ *  @remark @macos The GLFW window has no icon, as it is not a document
+ *  window, so this function does nothing.  The dock icon will be the same as
+ *  the application bundle's icon.  For more information on bundles, see the
+ *  [Bundle Programming Guide](https://developer.apple.com/library/mac/documentation/CoreFoundation/Conceptual/CFBundles/)
+ *  in the Mac Developer Library.
+ *
+ *  @remark @wayland There is no existing protocol to change an icon, the
+ *  window will thus inherit the one defined in the application's desktop file.
+ *  This function always emits @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_icon
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowIcon(GLFWwindow* window, int count, const GLFWimage* images);
+/*! @brief Retrieves the position of the content area of the specified window.
+ *
+ *  This function retrieves the position, in screen coordinates, of the
+ *  upper-left corner of the content area of the specified window.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] window The window to query.
+ *  @param[out] xpos Where to store the x-coordinate of the upper-left corner of
+ *  the content area, or `NULL`.
+ *  @param[out] ypos Where to store the y-coordinate of the upper-left corner of
+ *  the content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland There is no way for an application to retrieve the global
+ *  position of its windows, this function will always emit @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwSetWindowPos
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos);
+/*! @brief Sets the position of the content area of the specified window.
+ *
+ *  This function sets the position, in screen coordinates, of the upper-left
+ *  corner of the content area of the specified windowed mode window.  If the
+ *  window is a full screen window, this function does nothing.
+ *
+ *  __Do not use this function__ to move an already visible window unless you
+ *  have very good reasons for doing so, as it will confuse and annoy the user.
+ *
+ *  The window manager may put limits on what positions are allowed.  GLFW
+ *  cannot and should not override these limits.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] xpos The x-coordinate of the upper-left corner of the content area.
+ *  @param[in] ypos The y-coordinate of the upper-left corner of the content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland There is no way for an application to set the global
+ *  position of its windows, this function will always emit @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *  @sa @ref glfwGetWindowPos
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowPos(GLFWwindow* window, int xpos, int ypos);
+/*! @brief Retrieves the size of the content area of the specified window.
+ *
+ *  This function retrieves the size, in screen coordinates, of the content area
+ *  of the specified window.  If you wish to retrieve the size of the
+ *  framebuffer of the window in pixels, see @ref glfwGetFramebufferSize.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose size to retrieve.
+ *  @param[out] width Where to store the width, in screen coordinates, of the
+ *  content area, or `NULL`.
+ *  @param[out] height Where to store the height, in screen coordinates, of the
+ *  content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwSetWindowSize
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowSize(GLFWwindow* window, int* width, int* height);
+/*! @brief Sets the size limits of the specified window.
+ *
+ *  This function sets the size limits of the content area of the specified
+ *  window.  If the window is full screen, the size limits only take effect
+ *  once it is made windowed.  If the window is not resizable, this function
+ *  does nothing.
+ *
+ *  The size limits are applied immediately to a windowed mode window and may
+ *  cause it to be resized.
+ *
+ *  The maximum dimensions must be greater than or equal to the minimum
+ *  dimensions and all must be greater than or equal to zero.
+ *
+ *  @param[in] window The window to set limits for.
+ *  @param[in] minwidth The minimum width, in screen coordinates, of the content
+ *  area, or `GLFW_DONT_CARE`.
+ *  @param[in] minheight The minimum height, in screen coordinates, of the
+ *  content area, or `GLFW_DONT_CARE`.
+ *  @param[in] maxwidth The maximum width, in screen coordinates, of the content
+ *  area, or `GLFW_DONT_CARE`.
+ *  @param[in] maxheight The maximum height, in screen coordinates, of the
+ *  content area, or `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark If you set size limits and an aspect ratio that conflict, the
+ *  results are undefined.
+ *
+ *  @remark @wayland The size limits will not be applied until the window is
+ *  actually resized, either by the user or by the compositor.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_sizelimits
+ *  @sa @ref glfwSetWindowAspectRatio
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowSizeLimits(GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+/*! @brief Sets the aspect ratio of the specified window.
+ *
+ *  This function sets the required aspect ratio of the content area of the
+ *  specified window.  If the window is full screen, the aspect ratio only takes
+ *  effect once it is made windowed.  If the window is not resizable, this
+ *  function does nothing.
+ *
+ *  The aspect ratio is specified as a numerator and a denominator and both
+ *  values must be greater than zero.  For example, the common 16:9 aspect ratio
+ *  is specified as 16 and 9, respectively.
+ *
+ *  If the numerator and denominator is set to `GLFW_DONT_CARE` then the aspect
+ *  ratio limit is disabled.
+ *
+ *  The aspect ratio is applied immediately to a windowed mode window and may
+ *  cause it to be resized.
+ *
+ *  @param[in] window The window to set limits for.
+ *  @param[in] numer The numerator of the desired aspect ratio, or
+ *  `GLFW_DONT_CARE`.
+ *  @param[in] denom The denominator of the desired aspect ratio, or
+ *  `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark If you set size limits and an aspect ratio that conflict, the
+ *  results are undefined.
+ *
+ *  @remark @wayland The aspect ratio will not be applied until the window is
+ *  actually resized, either by the user or by the compositor.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_sizelimits
+ *  @sa @ref glfwSetWindowSizeLimits
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowAspectRatio(GLFWwindow* window, int numer, int denom);
+/*! @brief Sets the size of the content area of the specified window.
+ *
+ *  This function sets the size, in screen coordinates, of the content area of
+ *  the specified window.
+ *
+ *  For full screen windows, this function updates the resolution of its desired
+ *  video mode and switches to the video mode closest to it, without affecting
+ *  the window's context.  As the context is unaffected, the bit depths of the
+ *  framebuffer remain unchanged.
+ *
+ *  If you wish to update the refresh rate of the desired video mode in addition
+ *  to its resolution, see @ref glfwSetWindowMonitor.
+ *
+ *  The window manager may put limits on what sizes are allowed.  GLFW cannot
+ *  and should not override these limits.
+ *
+ *  @param[in] window The window to resize.
+ *  @param[in] width The desired width, in screen coordinates, of the window
+ *  content area.
+ *  @param[in] height The desired height, in screen coordinates, of the window
+ *  content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland A full screen window will not attempt to change the mode,
+ *  no matter what the requested size.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *  @sa @ref glfwGetWindowSize
+ *  @sa @ref glfwSetWindowMonitor
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowSize(GLFWwindow* window, int width, int height);
+/*! @brief Retrieves the size of the framebuffer of the specified window.
+ *
+ *  This function retrieves the size, in pixels, of the framebuffer of the
+ *  specified window.  If you wish to retrieve the size of the window in screen
+ *  coordinates, see @ref glfwGetWindowSize.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose framebuffer to query.
+ *  @param[out] width Where to store the width, in pixels, of the framebuffer,
+ *  or `NULL`.
+ *  @param[out] height Where to store the height, in pixels, of the framebuffer,
+ *  or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_fbsize
+ *  @sa @ref glfwSetFramebufferSizeCallback
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetFramebufferSize(GLFWwindow* window, int* width, int* height);
+/*! @brief Retrieves the size of the frame of the window.
+ *
+ *  This function retrieves the size, in screen coordinates, of each edge of the
+ *  frame of the specified window.  This size includes the title bar, if the
+ *  window has one.  The size of the frame may vary depending on the
+ *  [window-related hints](@ref window_hints_wnd) used to create it.
+ *
+ *  Because this function retrieves the size of each window frame edge and not
+ *  the offset along a particular coordinate axis, the retrieved values will
+ *  always be zero or positive.
+ *
+ *  Any or all of the size arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` size arguments will be set to zero.
+ *
+ *  @param[in] window The window whose frame size to query.
+ *  @param[out] left Where to store the size, in screen coordinates, of the left
+ *  edge of the window frame, or `NULL`.
+ *  @param[out] top Where to store the size, in screen coordinates, of the top
+ *  edge of the window frame, or `NULL`.
+ *  @param[out] right Where to store the size, in screen coordinates, of the
+ *  right edge of the window frame, or `NULL`.
+ *  @param[out] bottom Where to store the size, in screen coordinates, of the
+ *  bottom edge of the window frame, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+/*! @brief Retrieves the content scale for the specified window.
+ *
+ *  This function retrieves the content scale for the specified window.  The
+ *  content scale is the ratio between the current DPI and the platform's
+ *  default DPI.  This is especially important for text and any UI elements.  If
+ *  the pixel dimensions of your UI scaled by this look appropriate on your
+ *  machine then it should appear at a reasonable size on other machines
+ *  regardless of their DPI and scaling settings.  This relies on the system DPI
+ *  and scaling settings being somewhat correct.
+ *
+ *  On systems where each monitors can have its own content scale, the window
+ *  content scale will depend on which monitor the system considers the window
+ *  to be on.
+ *
+ *  @param[in] window The window to query.
+ *  @param[out] xscale Where to store the x-axis content scale, or `NULL`.
+ *  @param[out] yscale Where to store the y-axis content scale, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwSetWindowContentScaleCallback
+ *  @sa @ref glfwGetMonitorContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwGetWindowContentScale(GLFWwindow* window, float* xscale, float* yscale);
+/*! @brief Returns the opacity of the whole window.
+ *
+ *  This function returns the opacity of the window, including any decorations.
+ *
+ *  The opacity (or alpha) value is a positive finite number between zero and
+ *  one, where zero is fully transparent and one is fully opaque.  If the system
+ *  does not support whole window transparency, this function always returns one.
+ *
+ *  The initial opacity value for newly created windows is one.
+ *
+ *  @param[in] window The window to query.
+ *  @return The opacity value of the specified window.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_transparency
+ *  @sa @ref glfwSetWindowOpacity
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI float glfwGetWindowOpacity(GLFWwindow* window);
+/*! @brief Sets the opacity of the whole window.
+ *
+ *  This function sets the opacity of the window, including any decorations.
+ *
+ *  The opacity (or alpha) value is a positive finite number between zero and
+ *  one, where zero is fully transparent and one is fully opaque.
+ *
+ *  The initial opacity value for newly created windows is one.
+ *
+ *  A window created with framebuffer transparency may not use whole window
+ *  transparency.  The results of doing this are undefined.
+ *
+ *  @param[in] window The window to set the opacity for.
+ *  @param[in] opacity The desired opacity of the specified window.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_transparency
+ *  @sa @ref glfwGetWindowOpacity
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowOpacity(GLFWwindow* window, float opacity);
+/*! @brief Iconifies the specified window.
+ *
+ *  This function iconifies (minimizes) the specified window if it was
+ *  previously restored.  If the window is already iconified, this function does
+ *  nothing.
+ *
+ *  If the specified window is a full screen window, the original monitor
+ *  resolution is restored until the window is restored.
+ *
+ *  @param[in] window The window to iconify.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland There is no concept of iconification in wl_shell, this
+ *  function will emit @ref GLFW_PLATFORM_ERROR when using this deprecated
+ *  protocol.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwRestoreWindow
+ *  @sa @ref glfwMaximizeWindow
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwIconifyWindow(GLFWwindow* window);
+/*! @brief Restores the specified window.
+ *
+ *  This function restores the specified window if it was previously iconified
+ *  (minimized) or maximized.  If the window is already restored, this function
+ *  does nothing.
+ *
+ *  If the specified window is a full screen window, the resolution chosen for
+ *  the window is restored on the selected monitor.
+ *
+ *  @param[in] window The window to restore.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwIconifyWindow
+ *  @sa @ref glfwMaximizeWindow
+ *
+ *  @since Added in version 2.1.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwRestoreWindow(GLFWwindow* window);
+/*! @brief Maximizes the specified window.
+ *
+ *  This function maximizes the specified window if it was previously not
+ *  maximized.  If the window is already maximized, this function does nothing.
+ *
+ *  If the specified window is a full screen window, this function does nothing.
+ *
+ *  @param[in] window The window to maximize.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @par Thread Safety
+ *  This function may only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *  @sa @ref glfwIconifyWindow
+ *  @sa @ref glfwRestoreWindow
+ *
+ *  @since Added in GLFW 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwMaximizeWindow(GLFWwindow* window);
+/*! @brief Makes the specified window visible.
+ *
+ *  This function makes the specified window visible if it was previously
+ *  hidden.  If the window is already visible or is in full screen mode, this
+ *  function does nothing.
+ *
+ *  By default, windowed mode windows are focused when shown
+ *  Set the [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_hint) window hint
+ *  to change this behavior for all newly created windows, or change the
+ *  behavior for an existing window with @ref glfwSetWindowAttrib.
+ *
+ *  @param[in] window The window to make visible.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hide
+ *  @sa @ref glfwHideWindow
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwShowWindow(GLFWwindow* window);
+/*! @brief Hides the specified window.
+ *
+ *  This function hides the specified window if it was previously visible.  If
+ *  the window is already hidden or is in full screen mode, this function does
+ *  nothing.
+ *
+ *  @param[in] window The window to hide.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_hide
+ *  @sa @ref glfwShowWindow
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwHideWindow(GLFWwindow* window);
+/*! @brief Brings the specified window to front and sets input focus.
+ *
+ *  This function brings the specified window to front and sets input focus.
+ *  The window should already be visible and not iconified.
+ *
+ *  By default, both windowed and full screen mode windows are focused when
+ *  initially created.  Set the [GLFW_FOCUSED](@ref GLFW_FOCUSED_hint) to
+ *  disable this behavior.
+ *
+ *  Also by default, windowed mode windows are focused when shown
+ *  with @ref glfwShowWindow. Set the
+ *  [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_hint) to disable this behavior.
+ *
+ *  __Do not use this function__ to steal focus from other applications unless
+ *  you are certain that is what the user wants.  Focus stealing can be
+ *  extremely disruptive.
+ *
+ *  For a less disruptive way of getting the user's attention, see
+ *  [attention requests](@ref window_attention).
+ *
+ *  @param[in] window The window to give input focus.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland It is not possible for an application to bring its windows
+ *  to front, this function will always emit @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_focus
+ *  @sa @ref window_attention
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwFocusWindow(GLFWwindow* window);
+/*! @brief Requests user attention to the specified window.
+ *
+ *  This function requests user attention to the specified window.  On
+ *  platforms where this is not supported, attention is requested to the
+ *  application as a whole.
+ *
+ *  Once the user has given attention, usually by focusing the window or
+ *  application, the system will end the request automatically.
+ *
+ *  @param[in] window The window to request attention to.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos Attention is requested to the application as a whole, not the
+ *  specific window.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attention
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwRequestWindowAttention(GLFWwindow* window);
+/*! @brief Returns the monitor that the window uses for full screen mode.
+ *
+ *  This function returns the handle of the monitor that the specified window is
+ *  in full screen on.
+ *
+ *  @param[in] window The window to query.
+ *  @return The monitor, or `NULL` if the window is in windowed mode or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_monitor
+ *  @sa @ref glfwSetWindowMonitor
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window);
+/*! @brief Sets the mode, monitor, video mode and placement of a window.
+ *
+ *  This function sets the monitor that the window uses for full screen mode or,
+ *  if the monitor is `NULL`, makes it windowed mode.
+ *
+ *  When setting a monitor, this function updates the width, height and refresh
+ *  rate of the desired video mode and switches to the video mode closest to it.
+ *  The window position is ignored when setting a monitor.
+ *
+ *  When the monitor is `NULL`, the position, width and height are used to
+ *  place the window content area.  The refresh rate is ignored when no monitor
+ *  is specified.
+ *
+ *  If you only wish to update the resolution of a full screen window or the
+ *  size of a windowed mode window, see @ref glfwSetWindowSize.
+ *
+ *  When a window transitions from full screen to windowed mode, this function
+ *  restores any previous window settings such as whether it is decorated,
+ *  floating, resizable, has size or aspect ratio limits, etc.
+ *
+ *  @param[in] window The window whose monitor, size or video mode to set.
+ *  @param[in] monitor The desired monitor, or `NULL` to set windowed mode.
+ *  @param[in] xpos The desired x-coordinate of the upper-left corner of the
+ *  content area.
+ *  @param[in] ypos The desired y-coordinate of the upper-left corner of the
+ *  content area.
+ *  @param[in] width The desired with, in screen coordinates, of the content
+ *  area or video mode.
+ *  @param[in] height The desired height, in screen coordinates, of the content
+ *  area or video mode.
+ *  @param[in] refreshRate The desired refresh rate, in Hz, of the video mode,
+ *  or `GLFW_DONT_CARE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The OpenGL or OpenGL ES context will not be destroyed or otherwise
+ *  affected by any resizing or mode switching, although you may need to update
+ *  your viewport if the framebuffer size has changed.
+ *
+ *  @remark @wayland The desired window position is ignored, as there is no way
+ *  for an application to set this property.
+ *
+ *  @remark @wayland Setting the window to full screen will not attempt to
+ *  change the mode, no matter what the requested size or refresh rate.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_monitor
+ *  @sa @ref window_full_screen
+ *  @sa @ref glfwGetWindowMonitor
+ *  @sa @ref glfwSetWindowSize
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowMonitor(GLFWwindow* window, GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+/*! @brief Returns an attribute of the specified window.
+ *
+ *  This function returns the value of an attribute of the specified window or
+ *  its OpenGL or OpenGL ES context.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] attrib The [window attribute](@ref window_attribs) whose value to
+ *  return.
+ *  @return The value of the attribute, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark Framebuffer related hints are not window attributes.  See @ref
+ *  window_attribs_fb for more information.
+ *
+ *  @remark Zero is a valid value for many window and context related
+ *  attributes so you cannot use a return value of zero as an indication of
+ *  errors.  However, this function should not fail as long as it is passed
+ *  valid arguments and the library has been [initialized](@ref intro_init).
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attribs
+ *  @sa @ref glfwSetWindowAttrib
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetWindowParam` and
+ *  `glfwGetGLVersion`.
+ *
+ *  @ingroup window
+ */
+GLFWAPI int glfwGetWindowAttrib(GLFWwindow* window, int attrib);
+/*! @brief Sets an attribute of the specified window.
+ *
+ *  This function sets the value of an attribute of the specified window.
+ *
+ *  The supported attributes are [GLFW_DECORATED](@ref GLFW_DECORATED_attrib),
+ *  [GLFW_RESIZABLE](@ref GLFW_RESIZABLE_attrib),
+ *  [GLFW_FLOATING](@ref GLFW_FLOATING_attrib),
+ *  [GLFW_AUTO_ICONIFY](@ref GLFW_AUTO_ICONIFY_attrib) and
+ *  [GLFW_FOCUS_ON_SHOW](@ref GLFW_FOCUS_ON_SHOW_attrib).
+ *
+ *  Some of these attributes are ignored for full screen windows.  The new
+ *  value will take effect if the window is later made windowed.
+ *
+ *  Some of these attributes are ignored for windowed mode windows.  The new
+ *  value will take effect if the window is later made full screen.
+ *
+ *  @param[in] window The window to set the attribute for.
+ *  @param[in] attrib A supported window attribute.
+ *  @param[in] value `GLFW_TRUE` or `GLFW_FALSE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM, @ref GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark Calling @ref glfwGetWindowAttrib will always return the latest
+ *  value, even if that value is ignored by the current mode of the window.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_attribs
+ *  @sa @ref glfwGetWindowAttrib
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowAttrib(GLFWwindow* window, int attrib, int value);
+/*! @brief Sets the user pointer of the specified window.
+ *
+ *  This function sets the user-defined pointer of the specified window.  The
+ *  current value is retained until the window is destroyed.  The initial value
+ *  is `NULL`.
+ *
+ *  @param[in] window The window whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_userptr
+ *  @sa @ref glfwGetWindowUserPointer
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSetWindowUserPointer(GLFWwindow* window, void* pointer);
+/*! @brief Returns the user pointer of the specified window.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified window.  The initial value is `NULL`.
+ *
+ *  @param[in] window The window whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref window_userptr
+ *  @sa @ref glfwSetWindowUserPointer
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* window);
+/*! @brief Sets the position callback for the specified window.
+ *
+ *  This function sets the position callback of the specified window, which is
+ *  called when the window is moved.  The callback is provided with the
+ *  position, in screen coordinates, of the upper-left corner of the content
+ *  area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int xpos, int ypos)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowposfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @wayland This callback will never be called, as there is no way for
+ *  an application to know its global position.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_pos
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowposfun glfwSetWindowPosCallback(GLFWwindow* window, GLFWwindowposfun callback);
+/*! @brief Sets the size callback for the specified window.
+ *
+ *  This function sets the size callback of the specified window, which is
+ *  called when the window is resized.  The callback is provided with the size,
+ *  in screen coordinates, of the content area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowsizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_size
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowsizefun glfwSetWindowSizeCallback(GLFWwindow* window, GLFWwindowsizefun callback);
+/*! @brief Sets the close callback for the specified window.
+ *
+ *  This function sets the close callback of the specified window, which is
+ *  called when the user attempts to close the window, for example by clicking
+ *  the close widget in the title bar.
+ *
+ *  The close flag is set before this callback is called, but you can modify it
+ *  at any time with @ref glfwSetWindowShouldClose.
+ *
+ *  The close callback is not triggered by @ref glfwDestroyWindow.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowclosefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @macos Selecting Quit from the application menu will trigger the
+ *  close callback for all windows.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_close
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* window, GLFWwindowclosefun callback);
+/*! @brief Sets the refresh callback for the specified window.
+ *
+ *  This function sets the refresh callback of the specified window, which is
+ *  called when the content area of the window needs to be redrawn, for example
+ *  if the window has been exposed after having been covered by another window.
+ *
+ *  On compositing window systems such as Aero, Compiz, Aqua or Wayland, where
+ *  the window contents are saved off-screen, this callback may be called only
+ *  very infrequently or never at all.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window);
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowrefreshfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_refresh
+ *
+ *  @since Added in version 2.5.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowrefreshfun glfwSetWindowRefreshCallback(GLFWwindow* window, GLFWwindowrefreshfun callback);
+/*! @brief Sets the focus callback for the specified window.
+ *
+ *  This function sets the focus callback of the specified window, which is
+ *  called when the window gains or loses input focus.
+ *
+ *  After the focus callback is called for a window that lost input focus,
+ *  synthetic key and mouse button release events will be generated for all such
+ *  that had been pressed.  For more information, see @ref glfwSetKeyCallback
+ *  and @ref glfwSetMouseButtonCallback.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int focused)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowfocusfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_focus
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* window, GLFWwindowfocusfun callback);
+/*! @brief Sets the iconify callback for the specified window.
+ *
+ *  This function sets the iconification callback of the specified window, which
+ *  is called when the window is iconified or restored.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int iconified)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowiconifyfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @wayland The wl_shell protocol has no concept of iconification,
+ *  this callback will never be called when using this deprecated protocol.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_iconify
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowiconifyfun glfwSetWindowIconifyCallback(GLFWwindow* window, GLFWwindowiconifyfun callback);
+/*! @brief Sets the maximize callback for the specified window.
+ *
+ *  This function sets the maximization callback of the specified window, which
+ *  is called when the window is maximized or restored.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int maximized)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowmaximizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_maximize
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowmaximizefun glfwSetWindowMaximizeCallback(GLFWwindow* window, GLFWwindowmaximizefun callback);
+/*! @brief Sets the framebuffer resize callback for the specified window.
+ *
+ *  This function sets the framebuffer resize callback of the specified window,
+ *  which is called when the framebuffer of the specified window is resized.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int width, int height)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWframebuffersizefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_fbsize
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWframebuffersizefun glfwSetFramebufferSizeCallback(GLFWwindow* window, GLFWframebuffersizefun callback);
+/*! @brief Sets the window content scale callback for the specified window.
+ *
+ *  This function sets the window content scale callback of the specified window,
+ *  which is called when the content scale of the specified window changes.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, float xscale, float yscale)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWwindowcontentscalefun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref window_scale
+ *  @sa @ref glfwGetWindowContentScale
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup window
+ */
+GLFWAPI GLFWwindowcontentscalefun glfwSetWindowContentScaleCallback(GLFWwindow* window, GLFWwindowcontentscalefun callback);
+/*! @brief Processes all pending events.
+ *
+ *  This function processes only those events that are already in the event
+ *  queue and then returns immediately.  Processing events will cause the window
+ *  and input callbacks associated with those events to be called.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwWaitEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwPollEvents(void);
+/*! @brief Waits until events are queued and processes them.
+ *
+ *  This function puts the calling thread to sleep until at least one event is
+ *  available in the event queue.  Once one or more events are available,
+ *  it behaves exactly like @ref glfwPollEvents, i.e. the events in the queue
+ *  are processed and the function then returns immediately.  Processing events
+ *  will cause the window and input callbacks associated with those events to be
+ *  called.
+ *
+ *  Since not all events are associated with callbacks, this function may return
+ *  without a callback having been called even if you are monitoring all
+ *  callbacks.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwPollEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 2.5.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWaitEvents(void);
+/*! @brief Waits with timeout until events are queued and processes them.
+ *
+ *  This function puts the calling thread to sleep until at least one event is
+ *  available in the event queue, or until the specified timeout is reached.  If
+ *  one or more events are available, it behaves exactly like @ref
+ *  glfwPollEvents, i.e. the events in the queue are processed and the function
+ *  then returns immediately.  Processing events will cause the window and input
+ *  callbacks associated with those events to be called.
+ *
+ *  The timeout value must be a positive finite number.
+ *
+ *  Since not all events are associated with callbacks, this function may return
+ *  without a callback having been called even if you are monitoring all
+ *  callbacks.
+ *
+ *  On some platforms, a window move, resize or menu operation will cause event
+ *  processing to block.  This is due to how event processing is designed on
+ *  those platforms.  You can use the
+ *  [window refresh callback](@ref window_refresh) to redraw the contents of
+ *  your window when necessary during such operations.
+ *
+ *  Do not assume that callbacks you set will _only_ be called in response to
+ *  event processing functions like this one.  While it is necessary to poll for
+ *  events, window systems that require GLFW to register callbacks of its own
+ *  can pass events to GLFW in response to many window system function calls.
+ *  GLFW will pass those events on to the application callbacks before
+ *  returning.
+ *
+ *  Event processing is not required for joystick input to work.
+ *
+ *  @param[in] timeout The maximum amount of time, in seconds, to wait.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_VALUE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwPollEvents
+ *  @sa @ref glfwWaitEvents
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwWaitEventsTimeout(double timeout);
+/*! @brief Posts an empty event to the event queue.
+ *
+ *  This function posts an empty event from the current thread to the event
+ *  queue, causing @ref glfwWaitEvents or @ref glfwWaitEventsTimeout to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref events
+ *  @sa @ref glfwWaitEvents
+ *  @sa @ref glfwWaitEventsTimeout
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwPostEmptyEvent(void);
+/*! @brief Returns the value of an input option for the specified window.
+ *
+ *  This function returns the value of an input option for the specified window.
+ *  The mode must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
+ *  @ref GLFW_STICKY_MOUSE_BUTTONS, @ref GLFW_LOCK_KEY_MODS or
+ *  @ref GLFW_RAW_MOUSE_MOTION.
+ *
+ *  @param[in] window The window to query.
+ *  @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
+ *  `GLFW_STICKY_MOUSE_BUTTONS`, `GLFW_LOCK_KEY_MODS` or
+ *  `GLFW_RAW_MOUSE_MOTION`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref glfwSetInputMode
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetInputMode(GLFWwindow* window, int mode);
+/*! @brief Sets an input option for the specified window.
+ *
+ *  This function sets an input mode option for the specified window.  The mode
+ *  must be one of @ref GLFW_CURSOR, @ref GLFW_STICKY_KEYS,
+ *  @ref GLFW_STICKY_MOUSE_BUTTONS, @ref GLFW_LOCK_KEY_MODS or
+ *  @ref GLFW_RAW_MOUSE_MOTION.
+ *
+ *  If the mode is `GLFW_CURSOR`, the value must be one of the following cursor
+ *  modes:
+ *  - `GLFW_CURSOR_NORMAL` makes the cursor visible and behaving normally.
+ *  - `GLFW_CURSOR_HIDDEN` makes the cursor invisible when it is over the
+ *    content area of the window but does not restrict the cursor from leaving.
+ *  - `GLFW_CURSOR_DISABLED` hides and grabs the cursor, providing virtual
+ *    and unlimited cursor movement.  This is useful for implementing for
+ *    example 3D camera controls.
+ *
+ *  If the mode is `GLFW_STICKY_KEYS`, the value must be either `GLFW_TRUE` to
+ *  enable sticky keys, or `GLFW_FALSE` to disable it.  If sticky keys are
+ *  enabled, a key press will ensure that @ref glfwGetKey returns `GLFW_PRESS`
+ *  the next time it is called even if the key had been released before the
+ *  call.  This is useful when you are only interested in whether keys have been
+ *  pressed but not when or in which order.
+ *
+ *  If the mode is `GLFW_STICKY_MOUSE_BUTTONS`, the value must be either
+ *  `GLFW_TRUE` to enable sticky mouse buttons, or `GLFW_FALSE` to disable it.
+ *  If sticky mouse buttons are enabled, a mouse button press will ensure that
+ *  @ref glfwGetMouseButton returns `GLFW_PRESS` the next time it is called even
+ *  if the mouse button had been released before the call.  This is useful when
+ *  you are only interested in whether mouse buttons have been pressed but not
+ *  when or in which order.
+ *
+ *  If the mode is `GLFW_LOCK_KEY_MODS`, the value must be either `GLFW_TRUE` to
+ *  enable lock key modifier bits, or `GLFW_FALSE` to disable them.  If enabled,
+ *  callbacks that receive modifier bits will also have the @ref
+ *  GLFW_MOD_CAPS_LOCK bit set when the event was generated with Caps Lock on,
+ *  and the @ref GLFW_MOD_NUM_LOCK bit when Num Lock was on.
+ *
+ *  If the mode is `GLFW_RAW_MOUSE_MOTION`, the value must be either `GLFW_TRUE`
+ *  to enable raw (unscaled and unaccelerated) mouse motion when the cursor is
+ *  disabled, or `GLFW_FALSE` to disable it.  If raw motion is not supported,
+ *  attempting to set this will emit @ref GLFW_PLATFORM_ERROR.  Call @ref
+ *  glfwRawMouseMotionSupported to check for support.
+ *
+ *  @param[in] window The window whose input mode to set.
+ *  @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS`,
+ *  `GLFW_STICKY_MOUSE_BUTTONS`, `GLFW_LOCK_KEY_MODS` or
+ *  `GLFW_RAW_MOUSE_MOTION`.
+ *  @param[in] value The new value of the specified input mode.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref glfwGetInputMode
+ *
+ *  @since Added in version 3.0.  Replaces `glfwEnable` and `glfwDisable`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetInputMode(GLFWwindow* window, int mode, int value);
+/*! @brief Returns whether raw mouse motion is supported.
+ *
+ *  This function returns whether raw mouse motion is supported on the current
+ *  system.  This status does not change after GLFW has been initialized so you
+ *  only need to check this once.  If you attempt to enable raw motion on
+ *  a system that does not support it, @ref GLFW_PLATFORM_ERROR will be emitted.
+ *
+ *  Raw mouse motion is closer to the actual motion of the mouse across
+ *  a surface.  It is not affected by the scaling and acceleration applied to
+ *  the motion of the desktop cursor.  That processing is suitable for a cursor
+ *  while raw motion is better for controlling for example a 3D camera.  Because
+ *  of this, raw mouse motion is only provided when the cursor is disabled.
+ *
+ *  @return `GLFW_TRUE` if raw mouse motion is supported on the current machine,
+ *  or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref raw_mouse_motion
+ *  @sa @ref glfwSetInputMode
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwRawMouseMotionSupported(void);
+/*! @brief Returns the layout-specific name of the specified printable key.
+ *
+ *  This function returns the name of the specified printable key, encoded as
+ *  UTF-8.  This is typically the character that key would produce without any
+ *  modifier keys, intended for displaying key bindings to the user.  For dead
+ *  keys, it is typically the diacritic it would add to a character.
+ *
+ *  __Do not use this function__ for [text input](@ref input_char).  You will
+ *  break text input for many languages even if it happens to work for yours.
+ *
+ *  If the key is `GLFW_KEY_UNKNOWN`, the scancode is used to identify the key,
+ *  otherwise the scancode is ignored.  If you specify a non-printable key, or
+ *  `GLFW_KEY_UNKNOWN` and a scancode that maps to a non-printable key, this
+ *  function returns `NULL` but does not emit an error.
+ *
+ *  This behavior allows you to always pass in the arguments in the
+ *  [key callback](@ref input_key) without modification.
+ *
+ *  The printable keys are:
+ *  - `GLFW_KEY_APOSTROPHE`
+ *  - `GLFW_KEY_COMMA`
+ *  - `GLFW_KEY_MINUS`
+ *  - `GLFW_KEY_PERIOD`
+ *  - `GLFW_KEY_SLASH`
+ *  - `GLFW_KEY_SEMICOLON`
+ *  - `GLFW_KEY_EQUAL`
+ *  - `GLFW_KEY_LEFT_BRACKET`
+ *  - `GLFW_KEY_RIGHT_BRACKET`
+ *  - `GLFW_KEY_BACKSLASH`
+ *  - `GLFW_KEY_WORLD_1`
+ *  - `GLFW_KEY_WORLD_2`
+ *  - `GLFW_KEY_0` to `GLFW_KEY_9`
+ *  - `GLFW_KEY_A` to `GLFW_KEY_Z`
+ *  - `GLFW_KEY_KP_0` to `GLFW_KEY_KP_9`
+ *  - `GLFW_KEY_KP_DECIMAL`
+ *  - `GLFW_KEY_KP_DIVIDE`
+ *  - `GLFW_KEY_KP_MULTIPLY`
+ *  - `GLFW_KEY_KP_SUBTRACT`
+ *  - `GLFW_KEY_KP_ADD`
+ *  - `GLFW_KEY_KP_EQUAL`
+ *
+ *  Names for printable keys depend on keyboard layout, while names for
+ *  non-printable keys are the same across layouts but depend on the application
+ *  language and should be localized along with other user interface text.
+ *
+ *  @param[in] key The key to query, or `GLFW_KEY_UNKNOWN`.
+ *  @param[in] scancode The scancode of the key to query.
+ *  @return The UTF-8 encoded, layout-specific name of the key, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The contents of the returned string may change when a keyboard
+ *  layout change event is received.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key_name
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetKeyName(int key, int scancode);
+/*! @brief Returns the platform-specific scancode of the specified key.
+ *
+ *  This function returns the platform-specific scancode of the specified key.
+ *
+ *  If the key is `GLFW_KEY_UNKNOWN` or does not exist on the keyboard this
+ *  method will return `-1`.
+ *
+ *  @param[in] key Any [named key](@ref keys).
+ *  @return The platform-specific scancode for the key, or `-1` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetKeyScancode(int key);
+/*! @brief Returns the last reported state of a keyboard key for the specified
+ *  window.
+ *
+ *  This function returns the last state reported for the specified key to the
+ *  specified window.  The returned state is one of `GLFW_PRESS` or
+ *  `GLFW_RELEASE`.  The higher-level action `GLFW_REPEAT` is only reported to
+ *  the key callback.
+ *
+ *  If the @ref GLFW_STICKY_KEYS input mode is enabled, this function returns
+ *  `GLFW_PRESS` the first time you call it for a key that was pressed, even if
+ *  that key has already been released.
+ *
+ *  The key functions deal with physical keys, with [key tokens](@ref keys)
+ *  named after their use on the standard US keyboard layout.  If you want to
+ *  input text, use the Unicode character callback instead.
+ *
+ *  The [modifier key bit masks](@ref mods) are not key tokens and cannot be
+ *  used with this function.
+ *
+ *  __Do not use this function__ to implement [text input](@ref input_char).
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] key The desired [keyboard key](@ref keys).  `GLFW_KEY_UNKNOWN` is
+ *  not a valid key for this function.
+ *  @return One of `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetKey(GLFWwindow* window, int key);
+/*! @brief Returns the last reported state of a mouse button for the specified
+ *  window.
+ *
+ *  This function returns the last state reported for the specified mouse button
+ *  to the specified window.  The returned state is one of `GLFW_PRESS` or
+ *  `GLFW_RELEASE`.
+ *
+ *  If the @ref GLFW_STICKY_MOUSE_BUTTONS input mode is enabled, this function
+ *  returns `GLFW_PRESS` the first time you call it for a mouse button that was
+ *  pressed, even if that mouse button has already been released.
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] button The desired [mouse button](@ref buttons).
+ *  @return One of `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_mouse_button
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetMouseButton(GLFWwindow* window, int button);
+/*! @brief Retrieves the position of the cursor relative to the content area of
+ *  the window.
+ *
+ *  This function returns the position of the cursor, in screen coordinates,
+ *  relative to the upper-left corner of the content area of the specified
+ *  window.
+ *
+ *  If the cursor is disabled (with `GLFW_CURSOR_DISABLED`) then the cursor
+ *  position is unbounded and limited only by the minimum and maximum values of
+ *  a `double`.
+ *
+ *  The coordinate can be converted to their integer equivalents with the
+ *  `floor` function.  Casting directly to an integer type works for positive
+ *  coordinates, but fails for negative ones.
+ *
+ *  Any or all of the position arguments may be `NULL`.  If an error occurs, all
+ *  non-`NULL` position arguments will be set to zero.
+ *
+ *  @param[in] window The desired window.
+ *  @param[out] xpos Where to store the cursor x-coordinate, relative to the
+ *  left edge of the content area, or `NULL`.
+ *  @param[out] ypos Where to store the cursor y-coordinate, relative to the to
+ *  top edge of the content area, or `NULL`.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwSetCursorPos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetMousePos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwGetCursorPos(GLFWwindow* window, double* xpos, double* ypos);
+/*! @brief Sets the position of the cursor, relative to the content area of the
+ *  window.
+ *
+ *  This function sets the position, in screen coordinates, of the cursor
+ *  relative to the upper-left corner of the content area of the specified
+ *  window.  The window must have input focus.  If the window does not have
+ *  input focus when this function is called, it fails silently.
+ *
+ *  __Do not use this function__ to implement things like camera controls.  GLFW
+ *  already provides the `GLFW_CURSOR_DISABLED` cursor mode that hides the
+ *  cursor, transparently re-centers it and provides unconstrained cursor
+ *  motion.  See @ref glfwSetInputMode for more information.
+ *
+ *  If the cursor mode is `GLFW_CURSOR_DISABLED` then the cursor position is
+ *  unconstrained and limited only by the minimum and maximum values of
+ *  a `double`.
+ *
+ *  @param[in] window The desired window.
+ *  @param[in] xpos The desired x-coordinate, relative to the left edge of the
+ *  content area.
+ *  @param[in] ypos The desired y-coordinate, relative to the top edge of the
+ *  content area.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @wayland This function will only work when the cursor mode is
+ *  `GLFW_CURSOR_DISABLED`, otherwise it will do nothing.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *  @sa @ref glfwGetCursorPos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMousePos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetCursorPos(GLFWwindow* window, double xpos, double ypos);
+/*! @brief Creates a custom cursor.
+ *
+ *  Creates a new custom cursor image that can be set for a window with @ref
+ *  glfwSetCursor.  The cursor can be destroyed with @ref glfwDestroyCursor.
+ *  Any remaining cursors are destroyed by @ref glfwTerminate.
+ *
+ *  The pixels are 32-bit, little-endian, non-premultiplied RGBA, i.e. eight
+ *  bits per channel with the red channel first.  They are arranged canonically
+ *  as packed sequential rows, starting from the top-left corner.
+ *
+ *  The cursor hotspot is specified in pixels, relative to the upper-left corner
+ *  of the cursor image.  Like all other coordinate systems in GLFW, the X-axis
+ *  points to the right and the Y-axis points down.
+ *
+ *  @param[in] image The desired cursor image.
+ *  @param[in] xhot The desired x-coordinate, in pixels, of the cursor hotspot.
+ *  @param[in] yhot The desired y-coordinate, in pixels, of the cursor hotspot.
+ *  @return The handle of the created cursor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified image data is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *  @sa @ref glfwDestroyCursor
+ *  @sa @ref glfwCreateStandardCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot);
+/*! @brief Creates a cursor with a standard shape.
+ *
+ *  Returns a cursor with a [standard shape](@ref shapes), that can be set for
+ *  a window with @ref glfwSetCursor.
+ *
+ *  @param[in] shape One of the [standard shapes](@ref shapes).
+ *  @return A new cursor ready to use or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *  @sa @ref glfwCreateCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape);
+/*! @brief Destroys a cursor.
+ *
+ *  This function destroys a cursor previously created with @ref
+ *  glfwCreateCursor.  Any remaining cursors will be destroyed by @ref
+ *  glfwTerminate.
+ *
+ *  If the specified cursor is current for any window, that window will be
+ *  reverted to the default cursor.  This does not affect the cursor mode.
+ *
+ *  @param[in] cursor The cursor object to destroy.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @reentrancy This function must not be called from a callback.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *  @sa @ref glfwCreateCursor
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwDestroyCursor(GLFWcursor* cursor);
+/*! @brief Sets the cursor for the window.
+ *
+ *  This function sets the cursor image to be used when the cursor is over the
+ *  content area of the specified window.  The set cursor will only be visible
+ *  when the [cursor mode](@ref cursor_mode) of the window is
+ *  `GLFW_CURSOR_NORMAL`.
+ *
+ *  On some platforms, the set cursor may not be visible unless the window also
+ *  has input focus.
+ *
+ *  @param[in] window The window to set the cursor for.
+ *  @param[in] cursor The cursor to set, or `NULL` to switch back to the default
+ *  arrow cursor.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_object
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetCursor(GLFWwindow* window, GLFWcursor* cursor);
+/*! @brief Sets the key callback.
+ *
+ *  This function sets the key callback of the specified window, which is called
+ *  when a key is pressed, repeated or released.
+ *
+ *  The key functions deal with physical keys, with layout independent
+ *  [key tokens](@ref keys) named after their values in the standard US keyboard
+ *  layout.  If you want to input text, use the
+ *  [character callback](@ref glfwSetCharCallback) instead.
+ *
+ *  When a window loses input focus, it will generate synthetic key release
+ *  events for all pressed keys.  You can tell these events from user-generated
+ *  events by the fact that the synthetic ones are generated after the focus
+ *  loss event has been processed, i.e. after the
+ *  [window focus callback](@ref glfwSetWindowFocusCallback) has been called.
+ *
+ *  The scancode of a key is specific to that platform or sometimes even to that
+ *  machine.  Scancodes are intended to allow users to bind keys that don't have
+ *  a GLFW key token.  Such keys have `key` set to `GLFW_KEY_UNKNOWN`, their
+ *  state is not saved and so it cannot be queried with @ref glfwGetKey.
+ *
+ *  Sometimes GLFW needs to generate synthetic key events, in which case the
+ *  scancode may be zero.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new key callback, or `NULL` to remove the currently
+ *  set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int key, int scancode, int action, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWkeyfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_key
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun callback);
+/*! @brief Sets the Unicode character callback.
+ *
+ *  This function sets the character callback of the specified window, which is
+ *  called when a Unicode character is input.
+ *
+ *  The character callback is intended for Unicode text input.  As it deals with
+ *  characters, it is keyboard layout dependent, whereas the
+ *  [key callback](@ref glfwSetKeyCallback) is not.  Characters do not map 1:1
+ *  to physical keys, as a key may produce zero, one or more characters.  If you
+ *  want to know whether a specific physical key was pressed or released, see
+ *  the key callback instead.
+ *
+ *  The character callback behaves as system text input normally does and will
+ *  not be called if modifier keys are held down that would prevent normal text
+ *  input on that platform, for example a Super (Command) key on macOS or Alt key
+ *  on Windows.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcharfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_char
+ *
+ *  @since Added in version 2.4.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun callback);
+/*! @brief Sets the Unicode character with modifiers callback.
+ *
+ *  This function sets the character with modifiers callback of the specified
+ *  window, which is called when a Unicode character is input regardless of what
+ *  modifier keys are used.
+ *
+ *  The character with modifiers callback is intended for implementing custom
+ *  Unicode character input.  For regular Unicode text input, see the
+ *  [character callback](@ref glfwSetCharCallback).  Like the character
+ *  callback, the character with modifiers callback deals with characters and is
+ *  keyboard layout dependent.  Characters do not map 1:1 to physical keys, as
+ *  a key may produce zero, one or more characters.  If you want to know whether
+ *  a specific physical key was pressed or released, see the
+ *  [key callback](@ref glfwSetKeyCallback) instead.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, unsigned int codepoint, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcharmodsfun).
+ *
+ *  @deprecated Scheduled for removal in version 4.0.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_char
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* window, GLFWcharmodsfun callback);
+/*! @brief Sets the mouse button callback.
+ *
+ *  This function sets the mouse button callback of the specified window, which
+ *  is called when a mouse button is pressed or released.
+ *
+ *  When a window loses input focus, it will generate synthetic mouse button
+ *  release events for all pressed mouse buttons.  You can tell these events
+ *  from user-generated events by the fact that the synthetic ones are generated
+ *  after the focus loss event has been processed, i.e. after the
+ *  [window focus callback](@ref glfwSetWindowFocusCallback) has been called.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int button, int action, int mods)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWmousebuttonfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref input_mouse_button
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter and return value.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* window, GLFWmousebuttonfun callback);
+/*! @brief Sets the cursor position callback.
+ *
+ *  This function sets the cursor position callback of the specified window,
+ *  which is called when the cursor is moved.  The callback is provided with the
+ *  position, in screen coordinates, relative to the upper-left corner of the
+ *  content area of the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, double xpos, double ypos);
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcursorposfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_pos
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMousePosCallback`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* window, GLFWcursorposfun callback);
+/*! @brief Sets the cursor enter/leave callback.
+ *
+ *  This function sets the cursor boundary crossing callback of the specified
+ *  window, which is called when the cursor enters or leaves the content area of
+ *  the window.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int entered)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWcursorenterfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref cursor_enter
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* window, GLFWcursorenterfun callback);
+/*! @brief Sets the scroll callback.
+ *
+ *  This function sets the scroll callback of the specified window, which is
+ *  called when a scrolling device is used, such as a mouse wheel or scrolling
+ *  area of a touchpad.
+ *
+ *  The scroll callback receives all scrolling input, like that from a mouse
+ *  wheel or a touchpad scrolling area.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new scroll callback, or `NULL` to remove the
+ *  currently set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, double xoffset, double yoffset)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWscrollfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref scrolling
+ *
+ *  @since Added in version 3.0.  Replaces `glfwSetMouseWheelCallback`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* window, GLFWscrollfun callback);
+/*! @brief Sets the path drop callback.
+ *
+ *  This function sets the path drop callback of the specified window, which is
+ *  called when one or more dragged paths are dropped on the window.
+ *
+ *  Because the path array and its strings may have been generated specifically
+ *  for that event, they are not guaranteed to be valid after the callback has
+ *  returned.  If you wish to use them after the callback returns, you need to
+ *  make a deep copy.
+ *
+ *  @param[in] window The window whose callback to set.
+ *  @param[in] callback The new file drop callback, or `NULL` to remove the
+ *  currently set callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(GLFWwindow* window, int path_count, const char* paths[])
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWdropfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark @wayland File drop is currently unimplemented.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref path_drop
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* window, GLFWdropfun callback);
+/*! @brief Returns whether the specified joystick is present.
+ *
+ *  This function returns whether the specified joystick is present.
+ *
+ *  There is no need to call this function before other functions that accept
+ *  a joystick ID, as they all check for presence before performing any other
+ *  work.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return `GLFW_TRUE` if the joystick is present, or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetJoystickParam`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwJoystickPresent(int jid);
+/*! @brief Returns the values of all axes of the specified joystick.
+ *
+ *  This function returns the values of all axes of the specified joystick.
+ *  Each element in the array is a value between -1.0 and 1.0.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of axis values in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of axis values, or `NULL` if the joystick is not present or
+ *  an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_axis
+ *
+ *  @since Added in version 3.0.  Replaces `glfwGetJoystickPos`.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const float* glfwGetJoystickAxes(int jid, int* count);
+/*! @brief Returns the state of all buttons of the specified joystick.
+ *
+ *  This function returns the state of all buttons of the specified joystick.
+ *  Each element in the array is either `GLFW_PRESS` or `GLFW_RELEASE`.
+ *
+ *  For backward compatibility with earlier versions that did not have @ref
+ *  glfwGetJoystickHats, the button array also includes all hats, each
+ *  represented as four buttons.  The hats are in the same order as returned by
+ *  __glfwGetJoystickHats__ and are in the order _up_, _right_, _down_ and
+ *  _left_.  To disable these extra buttons, set the @ref
+ *  GLFW_JOYSTICK_HAT_BUTTONS init hint before initialization.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of button states in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of button states, or `NULL` if the joystick is not present
+ *  or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_button
+ *
+ *  @since Added in version 2.2.
+ *  @glfw3 Changed to return a dynamic array.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const unsigned char* glfwGetJoystickButtons(int jid, int* count);
+/*! @brief Returns the state of all hats of the specified joystick.
+ *
+ *  This function returns the state of all hats of the specified joystick.
+ *  Each element in the array is one of the following values:
+ *
+ *  Name                  | Value
+ *  ----                  | -----
+ *  `GLFW_HAT_CENTERED`   | 0
+ *  `GLFW_HAT_UP`         | 1
+ *  `GLFW_HAT_RIGHT`      | 2
+ *  `GLFW_HAT_DOWN`       | 4
+ *  `GLFW_HAT_LEFT`       | 8
+ *  `GLFW_HAT_RIGHT_UP`   | `GLFW_HAT_RIGHT` \| `GLFW_HAT_UP`
+ *  `GLFW_HAT_RIGHT_DOWN` | `GLFW_HAT_RIGHT` \| `GLFW_HAT_DOWN`
+ *  `GLFW_HAT_LEFT_UP`    | `GLFW_HAT_LEFT` \| `GLFW_HAT_UP`
+ *  `GLFW_HAT_LEFT_DOWN`  | `GLFW_HAT_LEFT` \| `GLFW_HAT_DOWN`
+ *
+ *  The diagonal directions are bitwise combinations of the primary (up, right,
+ *  down and left) directions and you can test for these individually by ANDing
+ *  it with the corresponding direction.
+ *
+ *  @code
+ *  if (hats[2] & GLFW_HAT_RIGHT)
+ *  {
+ *      // State of hat 2 could be right-up, right or right-down
+ *  }
+ *  @endcode
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] count Where to store the number of hat states in the returned
+ *  array.  This is set to zero if the joystick is not present or an error
+ *  occurred.
+ *  @return An array of hat states, or `NULL` if the joystick is not present
+ *  or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected, this function is called again for that joystick or the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_hat
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const unsigned char* glfwGetJoystickHats(int jid, int* count);
+/*! @brief Returns the name of the specified joystick.
+ *
+ *  This function returns the name, encoded as UTF-8, of the specified joystick.
+ *  The returned string is allocated and freed by GLFW.  You should not free it
+ *  yourself.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded name of the joystick, or `NULL` if the joystick
+ *  is not present or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_name
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetJoystickName(int jid);
+/*! @brief Returns the SDL compatible GUID of the specified joystick.
+ *
+ *  This function returns the SDL compatible GUID, as a UTF-8 encoded
+ *  hexadecimal string, of the specified joystick.  The returned string is
+ *  allocated and freed by GLFW.  You should not free it yourself.
+ *
+ *  The GUID is what connects a joystick to a gamepad mapping.  A connected
+ *  joystick will always have a GUID even if there is no gamepad mapping
+ *  assigned to it.
+ *
+ *  If the specified joystick is not present this function will return `NULL`
+ *  but will not generate an error.  This can be used instead of first calling
+ *  @ref glfwJoystickPresent.
+ *
+ *  The GUID uses the format introduced in SDL 2.0.5.  This GUID tries to
+ *  uniquely identify the make and model of a joystick but does not identify
+ *  a specific unit, e.g. all wired Xbox 360 controllers will have the same
+ *  GUID on that platform.  The GUID for a unit may vary between platforms
+ *  depending on what hardware information the platform specific APIs provide.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded GUID of the joystick, or `NULL` if the joystick
+ *  is not present or an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_INVALID_ENUM and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetJoystickGUID(int jid);
+/*! @brief Sets the user pointer of the specified joystick.
+ *
+ *  This function sets the user-defined pointer of the specified joystick.  The
+ *  current value is retained until the joystick is disconnected.  The initial
+ *  value is `NULL`.
+ *
+ *  This function may be called from the joystick callback, even for a joystick
+ *  that is being disconnected.
+ *
+ *  @param[in] jid The joystick whose pointer to set.
+ *  @param[in] pointer The new value.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref joystick_userptr
+ *  @sa @ref glfwGetJoystickUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetJoystickUserPointer(int jid, void* pointer);
+/*! @brief Returns the user pointer of the specified joystick.
+ *
+ *  This function returns the current value of the user-defined pointer of the
+ *  specified joystick.  The initial value is `NULL`.
+ *
+ *  This function may be called from the joystick callback, even for a joystick
+ *  that is being disconnected.
+ *
+ *  @param[in] jid The joystick whose pointer to return.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @sa @ref joystick_userptr
+ *  @sa @ref glfwSetJoystickUserPointer
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void* glfwGetJoystickUserPointer(int jid);
+/*! @brief Returns whether the specified joystick has a gamepad mapping.
+ *
+ *  This function returns whether the specified joystick is both present and has
+ *  a gamepad mapping.
+ *
+ *  If the specified joystick is present but does not have a gamepad mapping
+ *  this function will return `GLFW_FALSE` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check if a joystick is present regardless of
+ *  whether it has a mapping.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return `GLFW_TRUE` if a joystick is both present and has a gamepad mapping,
+ *  or `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwGetGamepadState
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwJoystickIsGamepad(int jid);
+/*! @brief Sets the joystick configuration callback.
+ *
+ *  This function sets the joystick configuration callback, or removes the
+ *  currently set callback.  This is called when a joystick is connected to or
+ *  disconnected from the system.
+ *
+ *  For joystick connection and disconnection events to be delivered on all
+ *  platforms, you need to call one of the [event processing](@ref events)
+ *  functions.  Joystick disconnection may also be detected and the callback
+ *  called by joystick functions.  The function will then return whatever it
+ *  returns if the joystick is not present.
+ *
+ *  @param[in] callback The new callback, or `NULL` to remove the currently set
+ *  callback.
+ *  @return The previously set callback, or `NULL` if no callback was set or the
+ *  library had not been [initialized](@ref intro_init).
+ *
+ *  @callback_signature
+ *  @code
+ *  void function_name(int jid, int event)
+ *  @endcode
+ *  For more information about the callback parameters, see the
+ *  [function pointer type](@ref GLFWjoystickfun).
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref joystick_event
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun callback);
+/*! @brief Adds the specified SDL_GameControllerDB gamepad mappings.
+ *
+ *  This function parses the specified ASCII encoded string and updates the
+ *  internal list with any gamepad mappings it finds.  This string may
+ *  contain either a single gamepad mapping or many mappings separated by
+ *  newlines.  The parser supports the full format of the `gamecontrollerdb.txt`
+ *  source file including empty lines and comments.
+ *
+ *  See @ref gamepad_mapping for a description of the format.
+ *
+ *  If there is already a gamepad mapping for a given GUID in the internal list,
+ *  it will be replaced by the one passed to this function.  If the library is
+ *  terminated and re-initialized the internal list will revert to the built-in
+ *  default.
+ *
+ *  @param[in] string The string containing the gamepad mappings.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwJoystickIsGamepad
+ *  @sa @ref glfwGetGamepadName
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwUpdateGamepadMappings(const char* string);
+/*! @brief Returns the human-readable gamepad name for the specified joystick.
+ *
+ *  This function returns the human-readable name of the gamepad from the
+ *  gamepad mapping assigned to the specified joystick.
+ *
+ *  If the specified joystick is not present or does not have a gamepad mapping
+ *  this function will return `NULL` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check whether it is present regardless of
+ *  whether it has a mapping.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @return The UTF-8 encoded name of the gamepad, or `NULL` if the
+ *  joystick is not present, does not have a mapping or an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the specified joystick is
+ *  disconnected, the gamepad mappings are updated or the library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwJoystickIsGamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetGamepadName(int jid);
+/*! @brief Retrieves the state of the specified joystick remapped as a gamepad.
+ *
+ *  This function retrieves the state of the specified joystick remapped to
+ *  an Xbox-like gamepad.
+ *
+ *  If the specified joystick is not present or does not have a gamepad mapping
+ *  this function will return `GLFW_FALSE` but will not generate an error.  Call
+ *  @ref glfwJoystickPresent to check whether it is present regardless of
+ *  whether it has a mapping.
+ *
+ *  The Guide button may not be available for input as it is often hooked by the
+ *  system or the Steam client.
+ *
+ *  Not all devices have all the buttons or axes provided by @ref
+ *  GLFWgamepadstate.  Unavailable buttons and axes will always report
+ *  `GLFW_RELEASE` and 0.0 respectively.
+ *
+ *  @param[in] jid The [joystick](@ref joysticks) to query.
+ *  @param[out] state The gamepad input state of the joystick.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if no joystick is
+ *  connected, it has no gamepad mapping or an [error](@ref error_handling)
+ *  occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_ENUM.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref gamepad
+ *  @sa @ref glfwUpdateGamepadMappings
+ *  @sa @ref glfwJoystickIsGamepad
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup input
+ */
+GLFWAPI int glfwGetGamepadState(int jid, GLFWgamepadstate* state);
+/*! @brief Sets the clipboard to the specified string.
+ *
+ *  This function sets the system clipboard to the specified, UTF-8 encoded
+ *  string.
+ *
+ *  @param[in] window Deprecated.  Any valid window or `NULL`.
+ *  @param[in] string A UTF-8 encoded string.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa @ref glfwGetClipboardString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetClipboardString(GLFWwindow* window, const char* string);
+/*! @brief Returns the contents of the clipboard as a string.
+ *
+ *  This function returns the contents of the system clipboard, if it contains
+ *  or is convertible to a UTF-8 encoded string.  If the clipboard is empty or
+ *  if its contents cannot be converted, `NULL` is returned and a @ref
+ *  GLFW_FORMAT_UNAVAILABLE error is generated.
+ *
+ *  @param[in] window Deprecated.  Any valid window or `NULL`.
+ *  @return The contents of the clipboard as a UTF-8 encoded string, or `NULL`
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is valid until the next call to @ref
+ *  glfwGetClipboardString or @ref glfwSetClipboardString, or until the library
+ *  is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa @ref glfwSetClipboardString
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI const char* glfwGetClipboardString(GLFWwindow* window);
+/*! @brief Returns the GLFW time.
+ *
+ *  This function returns the current GLFW time, in seconds.  Unless the time
+ *  has been set using @ref glfwSetTime it measures time elapsed since GLFW was
+ *  initialized.
+ *
+ *  This function and @ref glfwSetTime are helper functions on top of @ref
+ *  glfwGetTimerFrequency and @ref glfwGetTimerValue.
+ *
+ *  The resolution of the timer is system dependent, but is usually on the order
+ *  of a few micro- or nanoseconds.  It uses the highest-resolution monotonic
+ *  time source on each supported platform.
+ *
+ *  @return The current time, in seconds, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.  Reading and
+ *  writing of the internal base time is not atomic, so it needs to be
+ *  externally synchronized with calls to @ref glfwSetTime.
+ *
+ *  @sa @ref time
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup input
+ */
+GLFWAPI double glfwGetTime(void);
+/*! @brief Sets the GLFW time.
+ *
+ *  This function sets the current GLFW time, in seconds.  The value must be
+ *  a positive finite number less than or equal to 18446744073.0, which is
+ *  approximately 584.5 years.
+ *
+ *  This function and @ref glfwGetTime are helper functions on top of @ref
+ *  glfwGetTimerFrequency and @ref glfwGetTimerValue.
+ *
+ *  @param[in] time The new value, in seconds.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_INVALID_VALUE.
+ *
+ *  @remark The upper limit of GLFW time is calculated as
+ *  floor((2<sup>64</sup> - 1) / 10<sup>9</sup>) and is due to implementations
+ *  storing nanoseconds in 64 bits.  The limit may be increased in the future.
+ *
+ *  @thread_safety This function may be called from any thread.  Reading and
+ *  writing of the internal base time is not atomic, so it needs to be
+ *  externally synchronized with calls to @ref glfwGetTime.
+ *
+ *  @sa @ref time
+ *
+ *  @since Added in version 2.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI void glfwSetTime(double time);
+/*! @brief Returns the current value of the raw timer.
+ *
+ *  This function returns the current value of the raw timer, measured in
+ *  1&nbsp;/&nbsp;frequency seconds.  To get the frequency, call @ref
+ *  glfwGetTimerFrequency.
+ *
+ *  @return The value of the timer, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref time
+ *  @sa @ref glfwGetTimerFrequency
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI uint64_t glfwGetTimerValue(void);
+/*! @brief Returns the frequency, in Hz, of the raw timer.
+ *
+ *  This function returns the frequency, in Hz, of the raw timer.
+ *
+ *  @return The frequency of the timer, in Hz, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref time
+ *  @sa @ref glfwGetTimerValue
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup input
+ */
+GLFWAPI uint64_t glfwGetTimerFrequency(void);
+/*! @brief Makes the context of the specified window current for the calling
+ *  thread.
+ *
+ *  This function makes the OpenGL or OpenGL ES context of the specified window
+ *  current on the calling thread.  A context must only be made current on
+ *  a single thread at a time and each thread can have only a single current
+ *  context at a time.
+ *
+ *  When moving a context between threads, you must make it non-current on the
+ *  old thread before making it current on the new one.
+ *
+ *  By default, making a context non-current implicitly forces a pipeline flush.
+ *  On machines that support `GL_KHR_context_flush_control`, you can control
+ *  whether a context performs this flush by setting the
+ *  [GLFW_CONTEXT_RELEASE_BEHAVIOR](@ref GLFW_CONTEXT_RELEASE_BEHAVIOR_hint)
+ *  hint.
+ *
+ *  The specified window must have an OpenGL or OpenGL ES context.  Specifying
+ *  a window without a context will generate a @ref GLFW_NO_WINDOW_CONTEXT
+ *  error.
+ *
+ *  @param[in] window The window whose context to make current, or `NULL` to
+ *  detach the current context.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_current
+ *  @sa @ref glfwGetCurrentContext
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI void glfwMakeContextCurrent(GLFWwindow* window);
+/*! @brief Returns the window whose context is current on the calling thread.
+ *
+ *  This function returns the window whose OpenGL or OpenGL ES context is
+ *  current on the calling thread.
+ *
+ *  @return The window whose context is current, or `NULL` if no window's
+ *  context is current.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_current
+ *  @sa @ref glfwMakeContextCurrent
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI GLFWwindow* glfwGetCurrentContext(void);
+/*! @brief Swaps the front and back buffers of the specified window.
+ *
+ *  This function swaps the front and back buffers of the specified window when
+ *  rendering with OpenGL or OpenGL ES.  If the swap interval is greater than
+ *  zero, the GPU driver waits the specified number of screen updates before
+ *  swapping the buffers.
+ *
+ *  The specified window must have an OpenGL or OpenGL ES context.  Specifying
+ *  a window without a context will generate a @ref GLFW_NO_WINDOW_CONTEXT
+ *  error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see `vkQueuePresentKHR` instead.
+ *
+ *  @param[in] window The window whose buffers to swap.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark __EGL:__ The context of the specified window must be current on the
+ *  calling thread.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref buffer_swap
+ *  @sa @ref glfwSwapInterval
+ *
+ *  @since Added in version 1.0.
+ *  @glfw3 Added window handle parameter.
+ *
+ *  @ingroup window
+ */
+GLFWAPI void glfwSwapBuffers(GLFWwindow* window);
+/*! @brief Sets the swap interval for the current context.
+ *
+ *  This function sets the swap interval for the current OpenGL or OpenGL ES
+ *  context, i.e. the number of screen updates to wait from the time @ref
+ *  glfwSwapBuffers was called before swapping the buffers and returning.  This
+ *  is sometimes called _vertical synchronization_, _vertical retrace
+ *  synchronization_ or just _vsync_.
+ *
+ *  A context that supports either of the `WGL_EXT_swap_control_tear` and
+ *  `GLX_EXT_swap_control_tear` extensions also accepts _negative_ swap
+ *  intervals, which allows the driver to swap immediately even if a frame
+ *  arrives a little bit late.  You can check for these extensions with @ref
+ *  glfwExtensionSupported.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see the present mode of your swapchain instead.
+ *
+ *  @param[in] interval The minimum number of screen updates to wait for
+ *  until the buffers are swapped by @ref glfwSwapBuffers.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark This function is not called during context creation, leaving the
+ *  swap interval set to whatever is the default on that platform.  This is done
+ *  because some swap interval extensions used by GLFW do not allow the swap
+ *  interval to be reset to zero once it has been set to a non-zero value.
+ *
+ *  @remark Some GPU drivers do not honor the requested swap interval, either
+ *  because of a user setting that overrides the application's request or due to
+ *  bugs in the driver.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref buffer_swap
+ *  @sa @ref glfwSwapBuffers
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI void glfwSwapInterval(int interval);
+/*! @brief Returns whether the specified extension is available.
+ *
+ *  This function returns whether the specified
+ *  [API extension](@ref context_glext) is supported by the current OpenGL or
+ *  OpenGL ES context.  It searches both for client API extension and context
+ *  creation API extensions.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  As this functions retrieves and searches one or more extension strings each
+ *  call, it is recommended that you cache its results if it is going to be used
+ *  frequently.  The extension strings will not change during the lifetime of
+ *  a context, so there is no danger in doing this.
+ *
+ *  This function does not apply to Vulkan.  If you are using Vulkan, see @ref
+ *  glfwGetRequiredInstanceExtensions, `vkEnumerateInstanceExtensionProperties`
+ *  and `vkEnumerateDeviceExtensionProperties` instead.
+ *
+ *  @param[in] extension The ASCII encoded name of the extension.
+ *  @return `GLFW_TRUE` if the extension is available, or `GLFW_FALSE`
+ *  otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT, @ref GLFW_INVALID_VALUE and @ref
+ *  GLFW_PLATFORM_ERROR.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwGetProcAddress
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI int glfwExtensionSupported(const char* extension);
+/*! @brief Returns the address of the specified function for the current
+ *  context.
+ *
+ *  This function returns the address of the specified OpenGL or OpenGL ES
+ *  [core or extension function](@ref context_glext), if it is supported
+ *  by the current context.
+ *
+ *  A context must be current on the calling thread.  Calling this function
+ *  without a current context will cause a @ref GLFW_NO_CURRENT_CONTEXT error.
+ *
+ *  This function does not apply to Vulkan.  If you are rendering with Vulkan,
+ *  see @ref glfwGetInstanceProcAddress, `vkGetInstanceProcAddr` and
+ *  `vkGetDeviceProcAddr` instead.
+ *
+ *  @param[in] procname The ASCII encoded name of the function.
+ *  @return The address of the function, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_CURRENT_CONTEXT and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark The address of a given function is not guaranteed to be the same
+ *  between contexts.
+ *
+ *  @remark This function may return a non-`NULL` address despite the
+ *  associated version or extension not being available.  Always check the
+ *  context version or extension string first.
+ *
+ *  @pointer_lifetime The returned function pointer is valid until the context
+ *  is destroyed or the library is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref context_glext
+ *  @sa @ref glfwExtensionSupported
+ *
+ *  @since Added in version 1.0.
+ *
+ *  @ingroup context
+ */
+GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname);
+/*! @brief Returns whether the Vulkan loader and an ICD have been found.
+ *
+ *  This function returns whether the Vulkan loader and any minimally functional
+ *  ICD have been found.
+ *
+ *  The availability of a Vulkan loader and even an ICD does not by itself guarantee that
+ *  surface creation or even instance creation is possible.  Call @ref
+ *  glfwGetRequiredInstanceExtensions to check whether the extensions necessary for Vulkan
+ *  surface creation are available and @ref glfwGetPhysicalDevicePresentationSupport to
+ *  check whether a queue family of a physical device supports image presentation.
+ *
+ *  @return `GLFW_TRUE` if Vulkan is minimally available, or `GLFW_FALSE`
+ *  otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_support
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI int glfwVulkanSupported(void);
+/*! @brief Returns the Vulkan instance extensions required by GLFW.
+ *
+ *  This function returns an array of names of Vulkan instance extensions required
+ *  by GLFW for creating Vulkan surfaces for GLFW windows.  If successful, the
+ *  list will always contain `VK_KHR_surface`, so if you don't require any
+ *  additional extensions you can pass this list directly to the
+ *  `VkInstanceCreateInfo` struct.
+ *
+ *  If Vulkan is not available on the machine, this function returns `NULL` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available.
+ *
+ *  If Vulkan is available but no set of extensions allowing window surface
+ *  creation was found, this function returns `NULL`.  You may still use Vulkan
+ *  for off-screen rendering and compute work.
+ *
+ *  @param[out] count Where to store the number of extensions in the returned
+ *  array.  This is set to zero if an error occurred.
+ *  @return An array of ASCII encoded extension names, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_API_UNAVAILABLE.
+ *
+ *  @remark Additional extensions may be required by future versions of GLFW.
+ *  You should check if any extensions you wish to enable are already in the
+ *  returned array, as it is an error to specify an extension more than once in
+ *  the `VkInstanceCreateInfo` struct.
+ *
+ *  @remark @macos GLFW currently supports both the `VK_MVK_macos_surface` and
+ *  the newer `VK_EXT_metal_surface` extensions.
+ *
+ *  @pointer_lifetime The returned array is allocated and freed by GLFW.  You
+ *  should not free it yourself.  It is guaranteed to be valid only until the
+ *  library is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_ext
+ *  @sa @ref glfwCreateWindowSurface
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count);
+#if defined(VK_VERSION_1_0)
+/*! @brief Returns the address of the specified Vulkan instance function.
+ *
+ *  This function returns the address of the specified Vulkan core or extension
+ *  function for the specified instance.  If instance is set to `NULL` it can
+ *  return any function exported from the Vulkan loader, including at least the
+ *  following functions:
+ *
+ *  - `vkEnumerateInstanceExtensionProperties`
+ *  - `vkEnumerateInstanceLayerProperties`
+ *  - `vkCreateInstance`
+ *  - `vkGetInstanceProcAddr`
+ *
+ *  If Vulkan is not available on the machine, this function returns `NULL` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available.
+ *
+ *  This function is equivalent to calling `vkGetInstanceProcAddr` with
+ *  a platform-specific query of the Vulkan loader as a fallback.
+ *
+ *  @param[in] instance The Vulkan instance to query, or `NULL` to retrieve
+ *  functions related to instance creation.
+ *  @param[in] procname The ASCII encoded name of the function.
+ *  @return The address of the function, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_API_UNAVAILABLE.
+ *
+ *  @pointer_lifetime The returned function pointer is valid until the library
+ *  is terminated.
+ *
+ *  @thread_safety This function may be called from any thread.
+ *
+ *  @sa @ref vulkan_proc
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance, const char* procname);
+/*! @brief Returns whether the specified queue family can present images.
+ *
+ *  This function returns whether the specified queue family of the specified
+ *  physical device supports presentation to the platform GLFW was built for.
+ *
+ *  If Vulkan or the required window surface creation instance extensions are
+ *  not available on the machine, or if the specified instance was not created
+ *  with the required extensions, this function returns `GLFW_FALSE` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported
+ *  to check whether Vulkan is at least minimally available and @ref
+ *  glfwGetRequiredInstanceExtensions to check what instance extensions are
+ *  required.
+ *
+ *  @param[in] instance The instance that the physical device belongs to.
+ *  @param[in] device The physical device that the queue family belongs to.
+ *  @param[in] queuefamily The index of the queue family to query.
+ *  @return `GLFW_TRUE` if the queue family supports presentation, or
+ *  `GLFW_FALSE` otherwise.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_API_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @remark @macos This function currently always returns `GLFW_TRUE`, as the
+ *  `VK_MVK_macos_surface` and `VK_EXT_metal_surface` extensions do not provide
+ *  a `vkGetPhysicalDevice*PresentationSupport` type function.
+ *
+ *  @thread_safety This function may be called from any thread.  For
+ *  synchronization details of Vulkan objects, see the Vulkan specification.
+ *
+ *  @sa @ref vulkan_present
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+/*! @brief Creates a Vulkan surface for the specified window.
+ *
+ *  This function creates a Vulkan surface for the specified window.
+ *
+ *  If the Vulkan loader or at least one minimally functional ICD were not found,
+ *  this function returns `VK_ERROR_INITIALIZATION_FAILED` and generates a @ref
+ *  GLFW_API_UNAVAILABLE error.  Call @ref glfwVulkanSupported to check whether
+ *  Vulkan is at least minimally available.
+ *
+ *  If the required window surface creation instance extensions are not
+ *  available or if the specified instance was not created with these extensions
+ *  enabled, this function returns `VK_ERROR_EXTENSION_NOT_PRESENT` and
+ *  generates a @ref GLFW_API_UNAVAILABLE error.  Call @ref
+ *  glfwGetRequiredInstanceExtensions to check what instance extensions are
+ *  required.
+ *
+ *  The window surface cannot be shared with another API so the window must
+ *  have been created with the [client api hint](@ref GLFW_CLIENT_API_attrib)
+ *  set to `GLFW_NO_API` otherwise it generates a @ref GLFW_INVALID_VALUE error
+ *  and returns `VK_ERROR_NATIVE_WINDOW_IN_USE_KHR`.
+ *
+ *  The window surface must be destroyed before the specified Vulkan instance.
+ *  It is the responsibility of the caller to destroy the window surface.  GLFW
+ *  does not destroy it for you.  Call `vkDestroySurfaceKHR` to destroy the
+ *  surface.
+ *
+ *  @param[in] instance The Vulkan instance to create the surface in.
+ *  @param[in] window The window to create the surface for.
+ *  @param[in] allocator The allocator to use, or `NULL` to use the default
+ *  allocator.
+ *  @param[out] surface Where to store the handle of the surface.  This is set
+ *  to `VK_NULL_HANDLE` if an error occurred.
+ *  @return `VK_SUCCESS` if successful, or a Vulkan error code if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_API_UNAVAILABLE, @ref GLFW_PLATFORM_ERROR and @ref GLFW_INVALID_VALUE
+ *
+ *  @remark If an error occurs before the creation call is made, GLFW returns
+ *  the Vulkan error code most appropriate for the error.  Appropriate use of
+ *  @ref glfwVulkanSupported and @ref glfwGetRequiredInstanceExtensions should
+ *  eliminate almost all occurrences of these errors.
+ *
+ *  @remark @macos This function currently only supports the
+ *  `VK_MVK_macos_surface` extension from MoltenVK.
+ *
+ *  @remark @macos This function creates and sets a `CAMetalLayer` instance for
+ *  the window content view, which is required for MoltenVK to function.
+ *
+ *  @thread_safety This function may be called from any thread.  For
+ *  synchronization details of Vulkan objects, see the Vulkan specification.
+ *
+ *  @sa @ref vulkan_surface
+ *  @sa @ref glfwGetRequiredInstanceExtensions
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup vulkan
+ */
+GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+#endif /*VK_VERSION_1_0*/
+/*************************************************************************
+ * Global definition cleanup
+ *************************************************************************/
+/* ------------------- BEGIN SYSTEM/COMPILER SPECIFIC -------------------- */
+#ifdef GLFW_WINGDIAPI_DEFINED
+ #undef WINGDIAPI
+ #undef GLFW_WINGDIAPI_DEFINED
+#endif
+#ifdef GLFW_CALLBACK_DEFINED
+ #undef CALLBACK
+ #undef GLFW_CALLBACK_DEFINED
+#endif
+/* Some OpenGL related headers need GLAPIENTRY, but it is unconditionally
+ * defined by some gl.h variants (OpenBSD) so define it after if needed.
+ */
+#ifndef GLAPIENTRY
+ #define GLAPIENTRY APIENTRY
+#endif
+/* -------------------- END SYSTEM/COMPILER SPECIFIC --------------------- */
+#ifdef __cplusplus
+}
+#endif
+#endif /* _glfw3_h_ */