SDL_keyboard.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#ifndef _SDL_keyboard_h
#define _SDL_keyboard_h
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#include "SDL_stdinc.h"
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#include "SDL_error.h"
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#include "SDL_keysym.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
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/** Keysym structure
*
* - The scancode is hardware dependent, and should not be used by general
* applications. If no hardware scancode is available, it will be 0.
*
* - The 'unicode' translated character is only available when character
* translation is enabled by the SDL_EnableUNICODE() API. If non-zero,
* this is a UNICODE character corresponding to the keypress. If the
* high 9 bits of the character are 0, then this maps to the equivalent
* ASCII character:
* @code
* char ch;
* if ( (keysym.unicode & 0xFF80) == 0 ) {
* ch = keysym.unicode & 0x7F;
* } else {
* An international character..
* }
* @endcode
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*/
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typedef struct SDL_keysym {
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Uint8 scancode; /**< hardware specific scancode */
SDLKey sym; /**< SDL virtual keysym */
SDLMod mod; /**< current key modifiers */
Uint16 unicode; /**< translated character */
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} SDL_keysym;
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#define SDL_ALL_HOTKEYS 0xFFFFFFFF
/* Function prototypes */
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* Enable/Disable UNICODE translation of keyboard input.
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* This translation has some overhead, so translation defaults off.
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* If 'enable' is 1, translation is enabled.
* If 'enable' is 0, translation is disabled.
* If 'enable' is -1, the translation state is not changed.
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*/
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extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable);
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#define SDL_DEFAULT_REPEAT_DELAY 500
#define SDL_DEFAULT_REPEAT_INTERVAL 30
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/**
* Enable/Disable keyboard repeat. Keyboard repeat defaults to off.
*
* @param[in] delay
* 'delay' is the initial delay in ms between the time when a key is
* pressed, and keyboard repeat begins.
*
* @param[in] interval
* 'interval' is the time in ms between keyboard repeat events.
*
* If 'delay' is set to 0, keyboard repeat is disabled.
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*/
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extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval);
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* Get a snapshot of the current state of the keyboard.
* Returns an array of keystates, indexed by the SDLK_* syms.
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* Uint8 *keystate = SDL_GetKeyState(NULL);
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*/
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extern DECLSPEC Uint8 * SDLCALL SDL_GetKeyState(int *numkeys);
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* Get the current key modifier state
*/
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extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
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* This does not change the keyboard state, only the key modifier flags.
*/
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extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
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* Get the name of an SDL virtual keysym
*/
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extern DECLSPEC char * SDLCALL SDL_GetKeyName(SDLKey key);
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/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_keyboard_h */