2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 /** @file SDL_keyboard.h
24 * Include file for SDL keyboard event handling
27 #ifndef _SDL_keyboard_h
28 #define _SDL_keyboard_h
30 #include "SDL_stdinc.h"
31 #include "SDL_error.h"
32 #include "SDL_keysym.h"
34 #include "begin_code.h"
35 /* Set up for C function definitions, even when using C++ */
42 * - The scancode is hardware dependent, and should not be used by general
43 * applications. If no hardware scancode is available, it will be 0.
45 * - The 'unicode' translated character is only available when character
46 * translation is enabled by the SDL_EnableUNICODE() API. If non-zero,
47 * this is a UNICODE character corresponding to the keypress. If the
48 * high 9 bits of the character are 0, then this maps to the equivalent
52 * if ( (keysym.unicode & 0xFF80) == 0 ) {
53 * ch = keysym.unicode & 0x7F;
55 * An international character..
59 typedef struct SDL_keysym {
60 Uint8 scancode; /**< hardware specific scancode */
61 SDLKey sym; /**< SDL virtual keysym */
62 SDLMod mod; /**< current key modifiers */
63 Uint16 unicode; /**< translated character */
66 /** This is the mask which refers to all hotkey bindings */
67 #define SDL_ALL_HOTKEYS 0xFFFFFFFF
69 /* Function prototypes */
71 * Enable/Disable UNICODE translation of keyboard input.
73 * This translation has some overhead, so translation defaults off.
76 * If 'enable' is 1, translation is enabled.
77 * If 'enable' is 0, translation is disabled.
78 * If 'enable' is -1, the translation state is not changed.
80 * @return It returns the previous state of keyboard translation.
82 extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable);
84 #define SDL_DEFAULT_REPEAT_DELAY 500
85 #define SDL_DEFAULT_REPEAT_INTERVAL 30
87 * Enable/Disable keyboard repeat. Keyboard repeat defaults to off.
90 * 'delay' is the initial delay in ms between the time when a key is
91 * pressed, and keyboard repeat begins.
94 * 'interval' is the time in ms between keyboard repeat events.
96 * If 'delay' is set to 0, keyboard repeat is disabled.
98 extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval);
99 extern DECLSPEC void SDLCALL SDL_GetKeyRepeat(int *delay, int *interval);
102 * Get a snapshot of the current state of the keyboard.
103 * Returns an array of keystates, indexed by the SDLK_* syms.
106 * Uint8 *keystate = SDL_GetKeyState(NULL);
107 * if ( keystate[SDLK_RETURN] ) //... \<RETURN> is pressed.
110 extern DECLSPEC Uint8 * SDLCALL SDL_GetKeyState(int *numkeys);
113 * Get the current key modifier state
115 extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
118 * Set the current key modifier state.
119 * This does not change the keyboard state, only the key modifier flags.
121 extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
124 * Get the name of an SDL virtual keysym
126 extern DECLSPEC char * SDLCALL SDL_GetKeyName(SDLKey key);
129 /* Ends C function definitions when using C++ */
133 #include "close_code.h"
135 #endif /* _SDL_keyboard_h */