Mercurial > sdl-ios-xcode
annotate include/SDL_keyboard.h @ 4170:092c0bc69155 SDL-1.2
Fixed bug #618
Description From Tim Angus 2008-08-30 12:23:56 (-) [reply]
As we all know SDL 1.2 doesn't handle dead keys well since one key press
potentially equals two (or more) characters. For example, on many layouts,
keying <backquote>,<space> results in <no character>,<backquote><space>. Since
the unicode member of the SDL_keysym struct only has room for one character,
only one can be returned.
On Linux, the first character is returned. On Windows however, unless the exact
number of characters generated by the keypress is 1, nothing is returned. The
following patch addresses this inconsistency.
Updated patch which includes a further fix to the handling of the numpad when
numlock is on. This further fix is courtesy Amanieu d'Antras.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 13 Apr 2009 08:42:09 +0000 |
| parents | a1b03ba2fcd0 |
| children | 4c4113c2162c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 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 Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* Include file for SDL keyboard event handling */ | |
| 24 | |
| 25 #ifndef _SDL_keyboard_h | |
| 26 #define _SDL_keyboard_h | |
| 27 | |
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28 #include "SDL_stdinc.h" |
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29 #include "SDL_error.h" |
| 0 | 30 #include "SDL_keysym.h" |
| 31 | |
| 32 #include "begin_code.h" | |
| 33 /* Set up for C function definitions, even when using C++ */ | |
| 34 #ifdef __cplusplus | |
| 35 extern "C" { | |
| 36 #endif | |
| 37 | |
| 38 /* Keysym structure | |
| 39 - The scancode is hardware dependent, and should not be used by general | |
| 40 applications. If no hardware scancode is available, it will be 0. | |
| 41 | |
| 42 - The 'unicode' translated character is only available when character | |
| 43 translation is enabled by the SDL_EnableUNICODE() API. If non-zero, | |
| 44 this is a UNICODE character corresponding to the keypress. If the | |
| 45 high 9 bits of the character are 0, then this maps to the equivalent | |
| 46 ASCII character: | |
| 47 char ch; | |
| 48 if ( (keysym.unicode & 0xFF80) == 0 ) { | |
| 49 ch = keysym.unicode & 0x7F; | |
| 50 } else { | |
| 51 An international character.. | |
| 52 } | |
| 53 */ | |
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Date: Mon, 3 May 2004 03:15:01 +0100
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54 typedef struct SDL_keysym { |
| 0 | 55 Uint8 scancode; /* hardware specific scancode */ |
| 56 SDLKey sym; /* SDL virtual keysym */ | |
| 57 SDLMod mod; /* current key modifiers */ | |
| 58 Uint16 unicode; /* translated character */ | |
| 59 } SDL_keysym; | |
| 60 | |
| 61 /* This is the mask which refers to all hotkey bindings */ | |
| 62 #define SDL_ALL_HOTKEYS 0xFFFFFFFF | |
| 63 | |
| 64 /* Function prototypes */ | |
| 65 /* | |
| 66 * Enable/Disable UNICODE translation of keyboard input. | |
| 67 * This translation has some overhead, so translation defaults off. | |
| 68 * If 'enable' is 1, translation is enabled. | |
| 69 * If 'enable' is 0, translation is disabled. | |
| 70 * If 'enable' is -1, the translation state is not changed. | |
| 71 * It returns the previous state of keyboard translation. | |
| 72 */ | |
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73 extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable); |
| 0 | 74 |
| 75 /* | |
| 76 * Enable/Disable keyboard repeat. Keyboard repeat defaults to off. | |
| 77 * 'delay' is the initial delay in ms between the time when a key is | |
| 78 * pressed, and keyboard repeat begins. | |
| 79 * 'interval' is the time in ms between keyboard repeat events. | |
| 80 */ | |
| 81 #define SDL_DEFAULT_REPEAT_DELAY 500 | |
| 82 #define SDL_DEFAULT_REPEAT_INTERVAL 30 | |
| 83 /* | |
| 84 * If 'delay' is set to 0, keyboard repeat is disabled. | |
| 85 */ | |
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86 extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval); |
| 1507 | 87 extern DECLSPEC void SDLCALL SDL_GetKeyRepeat(int *delay, int *interval); |
| 0 | 88 |
| 89 /* | |
| 90 * Get a snapshot of the current state of the keyboard. | |
| 91 * Returns an array of keystates, indexed by the SDLK_* syms. | |
| 92 * Used: | |
| 93 * Uint8 *keystate = SDL_GetKeyState(NULL); | |
| 94 * if ( keystate[SDLK_RETURN] ) ... <RETURN> is pressed. | |
| 95 */ | |
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96 extern DECLSPEC Uint8 * SDLCALL SDL_GetKeyState(int *numkeys); |
| 0 | 97 |
| 98 /* | |
| 99 * Get the current key modifier state | |
| 100 */ | |
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101 extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void); |
| 0 | 102 |
| 103 /* | |
| 104 * Set the current key modifier state | |
| 105 * This does not change the keyboard state, only the key modifier flags. | |
| 106 */ | |
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107 extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate); |
| 0 | 108 |
| 109 /* | |
| 110 * Get the name of an SDL virtual keysym | |
| 111 */ | |
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112 extern DECLSPEC char * SDLCALL SDL_GetKeyName(SDLKey key); |
| 0 | 113 |
| 114 | |
| 115 /* Ends C function definitions when using C++ */ | |
| 116 #ifdef __cplusplus | |
| 117 } | |
| 118 #endif | |
| 119 #include "close_code.h" | |
| 120 | |
| 121 #endif /* _SDL_keyboard_h */ |