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Diffstat (limited to 'src/contrib/SDL-2.30.2/include/SDL_keyboard.h')
-rw-r--r-- | src/contrib/SDL-2.30.2/include/SDL_keyboard.h | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/src/contrib/SDL-2.30.2/include/SDL_keyboard.h b/src/contrib/SDL-2.30.2/include/SDL_keyboard.h new file mode 100644 index 0000000..03c7b5a --- /dev/null +++ b/src/contrib/SDL-2.30.2/include/SDL_keyboard.h | |||
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1 | /* | ||
2 | Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org> | ||
4 | |||
5 | This software is provided 'as-is', without any express or implied | ||
6 | warranty. In no event will the authors be held liable for any damages | ||
7 | arising from the use of this software. | ||
8 | |||
9 | Permission is granted to anyone to use this software for any purpose, | ||
10 | including commercial applications, and to alter it and redistribute it | ||
11 | freely, subject to the following restrictions: | ||
12 | |||
13 | 1. The origin of this software must not be misrepresented; you must not | ||
14 | claim that you wrote the original software. If you use this software | ||
15 | in a product, an acknowledgment in the product documentation would be | ||
16 | appreciated but is not required. | ||
17 | 2. Altered source versions must be plainly marked as such, and must not be | ||
18 | misrepresented as being the original software. | ||
19 | 3. This notice may not be removed or altered from any source distribution. | ||
20 | */ | ||
21 | |||
22 | /** | ||
23 | * \file SDL_keyboard.h | ||
24 | * | ||
25 | * Include file for SDL keyboard event handling | ||
26 | */ | ||
27 | |||
28 | #ifndef SDL_keyboard_h_ | ||
29 | #define SDL_keyboard_h_ | ||
30 | |||
31 | #include "SDL_stdinc.h" | ||
32 | #include "SDL_error.h" | ||
33 | #include "SDL_keycode.h" | ||
34 | #include "SDL_video.h" | ||
35 | |||
36 | #include "begin_code.h" | ||
37 | /* Set up for C function definitions, even when using C++ */ | ||
38 | #ifdef __cplusplus | ||
39 | extern "C" { | ||
40 | #endif | ||
41 | |||
42 | /** | ||
43 | * \brief The SDL keysym structure, used in key events. | ||
44 | * | ||
45 | * \note If you are looking for translated character input, see the ::SDL_TEXTINPUT event. | ||
46 | */ | ||
47 | typedef struct SDL_Keysym | ||
48 | { | ||
49 | SDL_Scancode scancode; /**< SDL physical key code - see ::SDL_Scancode for details */ | ||
50 | SDL_Keycode sym; /**< SDL virtual key code - see ::SDL_Keycode for details */ | ||
51 | Uint16 mod; /**< current key modifiers */ | ||
52 | Uint32 unused; | ||
53 | } SDL_Keysym; | ||
54 | |||
55 | /* Function prototypes */ | ||
56 | |||
57 | /** | ||
58 | * Query the window which currently has keyboard focus. | ||
59 | * | ||
60 | * \returns the window with keyboard focus. | ||
61 | * | ||
62 | * \since This function is available since SDL 2.0.0. | ||
63 | */ | ||
64 | extern DECLSPEC SDL_Window * SDLCALL SDL_GetKeyboardFocus(void); | ||
65 | |||
66 | /** | ||
67 | * Get a snapshot of the current state of the keyboard. | ||
68 | * | ||
69 | * The pointer returned is a pointer to an internal SDL array. It will be | ||
70 | * valid for the whole lifetime of the application and should not be freed by | ||
71 | * the caller. | ||
72 | * | ||
73 | * A array element with a value of 1 means that the key is pressed and a value | ||
74 | * of 0 means that it is not. Indexes into this array are obtained by using | ||
75 | * SDL_Scancode values. | ||
76 | * | ||
77 | * Use SDL_PumpEvents() to update the state array. | ||
78 | * | ||
79 | * This function gives you the current state after all events have been | ||
80 | * processed, so if a key or button has been pressed and released before you | ||
81 | * process events, then the pressed state will never show up in the | ||
82 | * SDL_GetKeyboardState() calls. | ||
83 | * | ||
84 | * Note: This function doesn't take into account whether shift has been | ||
85 | * pressed or not. | ||
86 | * | ||
87 | * \param numkeys if non-NULL, receives the length of the returned array | ||
88 | * \returns a pointer to an array of key states. | ||
89 | * | ||
90 | * \since This function is available since SDL 2.0.0. | ||
91 | * | ||
92 | * \sa SDL_PumpEvents | ||
93 | * \sa SDL_ResetKeyboard | ||
94 | */ | ||
95 | extern DECLSPEC const Uint8 *SDLCALL SDL_GetKeyboardState(int *numkeys); | ||
96 | |||
97 | /** | ||
98 | * Clear the state of the keyboard | ||
99 | * | ||
100 | * This function will generate key up events for all pressed keys. | ||
101 | * | ||
102 | * \since This function is available since SDL 2.24.0. | ||
103 | * | ||
104 | * \sa SDL_GetKeyboardState | ||
105 | */ | ||
106 | extern DECLSPEC void SDLCALL SDL_ResetKeyboard(void); | ||
107 | |||
108 | /** | ||
109 | * Get the current key modifier state for the keyboard. | ||
110 | * | ||
111 | * \returns an OR'd combination of the modifier keys for the keyboard. See | ||
112 | * SDL_Keymod for details. | ||
113 | * | ||
114 | * \since This function is available since SDL 2.0.0. | ||
115 | * | ||
116 | * \sa SDL_GetKeyboardState | ||
117 | * \sa SDL_SetModState | ||
118 | */ | ||
119 | extern DECLSPEC SDL_Keymod SDLCALL SDL_GetModState(void); | ||
120 | |||
121 | /** | ||
122 | * Set the current key modifier state for the keyboard. | ||
123 | * | ||
124 | * The inverse of SDL_GetModState(), SDL_SetModState() allows you to impose | ||
125 | * modifier key states on your application. Simply pass your desired modifier | ||
126 | * states into `modstate`. This value may be a bitwise, OR'd combination of | ||
127 | * SDL_Keymod values. | ||
128 | * | ||
129 | * This does not change the keyboard state, only the key modifier flags that | ||
130 | * SDL reports. | ||
131 | * | ||
132 | * \param modstate the desired SDL_Keymod for the keyboard | ||
133 | * | ||
134 | * \since This function is available since SDL 2.0.0. | ||
135 | * | ||
136 | * \sa SDL_GetModState | ||
137 | */ | ||
138 | extern DECLSPEC void SDLCALL SDL_SetModState(SDL_Keymod modstate); | ||
139 | |||
140 | /** | ||
141 | * Get the key code corresponding to the given scancode according to the | ||
142 | * current keyboard layout. | ||
143 | * | ||
144 | * See SDL_Keycode for details. | ||
145 | * | ||
146 | * \param scancode the desired SDL_Scancode to query | ||
147 | * \returns the SDL_Keycode that corresponds to the given SDL_Scancode. | ||
148 | * | ||
149 | * \since This function is available since SDL 2.0.0. | ||
150 | * | ||
151 | * \sa SDL_GetKeyName | ||
152 | * \sa SDL_GetScancodeFromKey | ||
153 | */ | ||
154 | extern DECLSPEC SDL_Keycode SDLCALL SDL_GetKeyFromScancode(SDL_Scancode scancode); | ||
155 | |||
156 | /** | ||
157 | * Get the scancode corresponding to the given key code according to the | ||
158 | * current keyboard layout. | ||
159 | * | ||
160 | * See SDL_Scancode for details. | ||
161 | * | ||
162 | * \param key the desired SDL_Keycode to query | ||
163 | * \returns the SDL_Scancode that corresponds to the given SDL_Keycode. | ||
164 | * | ||
165 | * \since This function is available since SDL 2.0.0. | ||
166 | * | ||
167 | * \sa SDL_GetKeyFromScancode | ||
168 | * \sa SDL_GetScancodeName | ||
169 | */ | ||
170 | extern DECLSPEC SDL_Scancode SDLCALL SDL_GetScancodeFromKey(SDL_Keycode key); | ||
171 | |||
172 | /** | ||
173 | * Get a human-readable name for a scancode. | ||
174 | * | ||
175 | * See SDL_Scancode for details. | ||
176 | * | ||
177 | * **Warning**: The returned name is by design not stable across platforms, | ||
178 | * e.g. the name for `SDL_SCANCODE_LGUI` is "Left GUI" under Linux but "Left | ||
179 | * Windows" under Microsoft Windows, and some scancodes like | ||
180 | * `SDL_SCANCODE_NONUSBACKSLASH` don't have any name at all. There are even | ||
181 | * scancodes that share names, e.g. `SDL_SCANCODE_RETURN` and | ||
182 | * `SDL_SCANCODE_RETURN2` (both called "Return"). This function is therefore | ||
183 | * unsuitable for creating a stable cross-platform two-way mapping between | ||
184 | * strings and scancodes. | ||
185 | * | ||
186 | * \param scancode the desired SDL_Scancode to query | ||
187 | * \returns a pointer to the name for the scancode. If the scancode doesn't | ||
188 | * have a name this function returns an empty string (""). | ||
189 | * | ||
190 | * \since This function is available since SDL 2.0.0. | ||
191 | * | ||
192 | * \sa SDL_GetScancodeFromKey | ||
193 | * \sa SDL_GetScancodeFromName | ||
194 | */ | ||
195 | extern DECLSPEC const char *SDLCALL SDL_GetScancodeName(SDL_Scancode scancode); | ||
196 | |||
197 | /** | ||
198 | * Get a scancode from a human-readable name. | ||
199 | * | ||
200 | * \param name the human-readable scancode name | ||
201 | * \returns the SDL_Scancode, or `SDL_SCANCODE_UNKNOWN` if the name wasn't | ||
202 | * recognized; call SDL_GetError() for more information. | ||
203 | * | ||
204 | * \since This function is available since SDL 2.0.0. | ||
205 | * | ||
206 | * \sa SDL_GetKeyFromName | ||
207 | * \sa SDL_GetScancodeFromKey | ||
208 | * \sa SDL_GetScancodeName | ||
209 | */ | ||
210 | extern DECLSPEC SDL_Scancode SDLCALL SDL_GetScancodeFromName(const char *name); | ||
211 | |||
212 | /** | ||
213 | * Get a human-readable name for a key. | ||
214 | * | ||
215 | * See SDL_Scancode and SDL_Keycode for details. | ||
216 | * | ||
217 | * \param key the desired SDL_Keycode to query | ||
218 | * \returns a pointer to a UTF-8 string that stays valid at least until the | ||
219 | * next call to this function. If you need it around any longer, you | ||
220 | * must copy it. If the key doesn't have a name, this function | ||
221 | * returns an empty string (""). | ||
222 | * | ||
223 | * \since This function is available since SDL 2.0.0. | ||
224 | * | ||
225 | * \sa SDL_GetKeyFromName | ||
226 | * \sa SDL_GetKeyFromScancode | ||
227 | * \sa SDL_GetScancodeFromKey | ||
228 | */ | ||
229 | extern DECLSPEC const char *SDLCALL SDL_GetKeyName(SDL_Keycode key); | ||
230 | |||
231 | /** | ||
232 | * Get a key code from a human-readable name. | ||
233 | * | ||
234 | * \param name the human-readable key name | ||
235 | * \returns key code, or `SDLK_UNKNOWN` if the name wasn't recognized; call | ||
236 | * SDL_GetError() for more information. | ||
237 | * | ||
238 | * \since This function is available since SDL 2.0.0. | ||
239 | * | ||
240 | * \sa SDL_GetKeyFromScancode | ||
241 | * \sa SDL_GetKeyName | ||
242 | * \sa SDL_GetScancodeFromName | ||
243 | */ | ||
244 | extern DECLSPEC SDL_Keycode SDLCALL SDL_GetKeyFromName(const char *name); | ||
245 | |||
246 | /** | ||
247 | * Start accepting Unicode text input events. | ||
248 | * | ||
249 | * This function will start accepting Unicode text input events in the focused | ||
250 | * SDL window, and start emitting SDL_TextInputEvent (SDL_TEXTINPUT) and | ||
251 | * SDL_TextEditingEvent (SDL_TEXTEDITING) events. Please use this function in | ||
252 | * pair with SDL_StopTextInput(). | ||
253 | * | ||
254 | * On some platforms using this function activates the screen keyboard. | ||
255 | * | ||
256 | * \since This function is available since SDL 2.0.0. | ||
257 | * | ||
258 | * \sa SDL_SetTextInputRect | ||
259 | * \sa SDL_StopTextInput | ||
260 | */ | ||
261 | extern DECLSPEC void SDLCALL SDL_StartTextInput(void); | ||
262 | |||
263 | /** | ||
264 | * Check whether or not Unicode text input events are enabled. | ||
265 | * | ||
266 | * \returns SDL_TRUE if text input events are enabled else SDL_FALSE. | ||
267 | * | ||
268 | * \since This function is available since SDL 2.0.0. | ||
269 | * | ||
270 | * \sa SDL_StartTextInput | ||
271 | */ | ||
272 | extern DECLSPEC SDL_bool SDLCALL SDL_IsTextInputActive(void); | ||
273 | |||
274 | /** | ||
275 | * Stop receiving any text input events. | ||
276 | * | ||
277 | * \since This function is available since SDL 2.0.0. | ||
278 | * | ||
279 | * \sa SDL_StartTextInput | ||
280 | */ | ||
281 | extern DECLSPEC void SDLCALL SDL_StopTextInput(void); | ||
282 | |||
283 | /** | ||
284 | * Dismiss the composition window/IME without disabling the subsystem. | ||
285 | * | ||
286 | * \since This function is available since SDL 2.0.22. | ||
287 | * | ||
288 | * \sa SDL_StartTextInput | ||
289 | * \sa SDL_StopTextInput | ||
290 | */ | ||
291 | extern DECLSPEC void SDLCALL SDL_ClearComposition(void); | ||
292 | |||
293 | /** | ||
294 | * Returns if an IME Composite or Candidate window is currently shown. | ||
295 | * | ||
296 | * \since This function is available since SDL 2.0.22. | ||
297 | */ | ||
298 | extern DECLSPEC SDL_bool SDLCALL SDL_IsTextInputShown(void); | ||
299 | |||
300 | /** | ||
301 | * Set the rectangle used to type Unicode text inputs. Native input methods | ||
302 | * will place a window with word suggestions near it, without covering the | ||
303 | * text being inputted. | ||
304 | * | ||
305 | * To start text input in a given location, this function is intended to be | ||
306 | * called before SDL_StartTextInput, although some platforms support moving | ||
307 | * the rectangle even while text input (and a composition) is active. | ||
308 | * | ||
309 | * Note: If you want to use the system native IME window, try setting hint | ||
310 | * **SDL_HINT_IME_SHOW_UI** to **1**, otherwise this function won't give you | ||
311 | * any feedback. | ||
312 | * | ||
313 | * \param rect the SDL_Rect structure representing the rectangle to receive | ||
314 | * text (ignored if NULL) | ||
315 | * | ||
316 | * \since This function is available since SDL 2.0.0. | ||
317 | * | ||
318 | * \sa SDL_StartTextInput | ||
319 | */ | ||
320 | extern DECLSPEC void SDLCALL SDL_SetTextInputRect(const SDL_Rect *rect); | ||
321 | |||
322 | /** | ||
323 | * Check whether the platform has screen keyboard support. | ||
324 | * | ||
325 | * \returns SDL_TRUE if the platform has some screen keyboard support or | ||
326 | * SDL_FALSE if not. | ||
327 | * | ||
328 | * \since This function is available since SDL 2.0.0. | ||
329 | * | ||
330 | * \sa SDL_StartTextInput | ||
331 | * \sa SDL_IsScreenKeyboardShown | ||
332 | */ | ||
333 | extern DECLSPEC SDL_bool SDLCALL SDL_HasScreenKeyboardSupport(void); | ||
334 | |||
335 | /** | ||
336 | * Check whether the screen keyboard is shown for given window. | ||
337 | * | ||
338 | * \param window the window for which screen keyboard should be queried | ||
339 | * \returns SDL_TRUE if screen keyboard is shown or SDL_FALSE if not. | ||
340 | * | ||
341 | * \since This function is available since SDL 2.0.0. | ||
342 | * | ||
343 | * \sa SDL_HasScreenKeyboardSupport | ||
344 | */ | ||
345 | extern DECLSPEC SDL_bool SDLCALL SDL_IsScreenKeyboardShown(SDL_Window *window); | ||
346 | |||
347 | /* Ends C function definitions when using C++ */ | ||
348 | #ifdef __cplusplus | ||
349 | } | ||
350 | #endif | ||
351 | #include "close_code.h" | ||
352 | |||
353 | #endif /* SDL_keyboard_h_ */ | ||
354 | |||
355 | /* vi: set ts=4 sw=4 expandtab: */ | ||