annotate include/SDL_keyboard.h @ 1230:88c2d6aed428

From Mike Frysinger and/or Gentoo: - libsdl-PIC-load-mmx-masks-from-stack.patch this one may be a little controversial ... the fix here is again that you cant reference the memory addresses like this to load into a mmx register, so the way to do it is to push two 32bit words onto the stack, load the 64bit value off of the stack into the mmx register, and then adjust the stack so that it's back to normal.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 05 Jan 2006 15:25:19 +0000
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children c9b51268668f
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* Include file for SDL keyboard event handling */
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29
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30 #ifndef _SDL_keyboard_h
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31 #define _SDL_keyboard_h
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32
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33 #include "SDL_types.h"
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34 #include "SDL_keysym.h"
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35
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36 #include "begin_code.h"
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37 /* Set up for C function definitions, even when using C++ */
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38 #ifdef __cplusplus
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39 extern "C" {
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40 #endif
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41
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42 /* Keysym structure
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43 - The scancode is hardware dependent, and should not be used by general
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44 applications. If no hardware scancode is available, it will be 0.
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45
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46 - The 'unicode' translated character is only available when character
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47 translation is enabled by the SDL_EnableUNICODE() API. If non-zero,
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48 this is a UNICODE character corresponding to the keypress. If the
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49 high 9 bits of the character are 0, then this maps to the equivalent
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50 ASCII character:
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51 char ch;
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52 if ( (keysym.unicode & 0xFF80) == 0 ) {
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53 ch = keysym.unicode & 0x7F;
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54 } else {
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55 An international character..
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56 }
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57 */
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58 typedef struct SDL_keysym {
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59 Uint8 scancode; /* hardware specific scancode */
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60 SDLKey sym; /* SDL virtual keysym */
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61 SDLMod mod; /* current key modifiers */
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62 Uint16 unicode; /* translated character */
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63 } SDL_keysym;
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64
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65 /* This is the mask which refers to all hotkey bindings */
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66 #define SDL_ALL_HOTKEYS 0xFFFFFFFF
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67
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68 /* Function prototypes */
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69 /*
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70 * Enable/Disable UNICODE translation of keyboard input.
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71 * This translation has some overhead, so translation defaults off.
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72 * If 'enable' is 1, translation is enabled.
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73 * If 'enable' is 0, translation is disabled.
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74 * If 'enable' is -1, the translation state is not changed.
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75 * It returns the previous state of keyboard translation.
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76 */
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77 extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable);
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78
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79 /*
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80 * Enable/Disable keyboard repeat. Keyboard repeat defaults to off.
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81 * 'delay' is the initial delay in ms between the time when a key is
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82 * pressed, and keyboard repeat begins.
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83 * 'interval' is the time in ms between keyboard repeat events.
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84 */
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85 #define SDL_DEFAULT_REPEAT_DELAY 500
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86 #define SDL_DEFAULT_REPEAT_INTERVAL 30
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87 /*
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88 * If 'delay' is set to 0, keyboard repeat is disabled.
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89 */
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90 extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval);
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91
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92 /*
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93 * Get a snapshot of the current state of the keyboard.
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94 * Returns an array of keystates, indexed by the SDLK_* syms.
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95 * Used:
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96 * Uint8 *keystate = SDL_GetKeyState(NULL);
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97 * if ( keystate[SDLK_RETURN] ) ... <RETURN> is pressed.
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98 */
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99 extern DECLSPEC Uint8 * SDLCALL SDL_GetKeyState(int *numkeys);
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100
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101 /*
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102 * Get the current key modifier state
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103 */
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104 extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
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105
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106 /*
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107 * Set the current key modifier state
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108 * This does not change the keyboard state, only the key modifier flags.
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109 */
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110 extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
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111
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112 /*
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113 * Get the name of an SDL virtual keysym
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114 */
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115 extern DECLSPEC char * SDLCALL SDL_GetKeyName(SDLKey key);
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116
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117
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118 /* Ends C function definitions when using C++ */
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119 #ifdef __cplusplus
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120 }
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121 #endif
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122 #include "close_code.h"
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123
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124 #endif /* _SDL_keyboard_h */