This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_keyboard.h
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2006 Sam Lantinga
4
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.
9
10
11
12
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
13
Lesser General Public License for more details.
15
16
17
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
18
19
Sam Lantinga
20
slouken@libsdl.org
21
22
*/
23
24
25
26
27
/**
* \file SDL_keyboard.h
*
* Include file for SDL keyboard event handling
*/
28
29
30
31
#ifndef _SDL_keyboard_h
#define _SDL_keyboard_h
32
#include "SDL_stdinc.h"
33
#include "SDL_error.h"
34
35
36
37
38
#include "SDL_keysym.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
39
/* *INDENT-OFF* */
40
extern "C" {
41
/* *INDENT-ON* */
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
#endif
/* 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:
char ch;
if ( (keysym.unicode & 0xFF80) == 0 ) {
ch = keysym.unicode & 0x7F;
} else {
An international character..
}
*/
60
61
62
63
64
65
typedef struct SDL_keysym
{
Uint8 scancode; /* hardware specific scancode */
SDLKey sym; /* SDL virtual keysym */
SDLMod mod; /* current key modifiers */
Uint16 unicode; /* translated character */
66
67
68
69
70
71
72
73
74
75
76
77
78
79
} SDL_keysym;
/* This is the mask which refers to all hotkey bindings */
#define SDL_ALL_HOTKEYS 0xFFFFFFFF
/* Function prototypes */
/*
* Enable/Disable UNICODE translation of keyboard input.
* This translation has some overhead, so translation defaults off.
* If 'enable' is 1, translation is enabled.
* If 'enable' is 0, translation is disabled.
* If 'enable' is -1, the translation state is not changed.
* It returns the previous state of keyboard translation.
*/
80
extern DECLSPEC int SDLCALL SDL_EnableUNICODE (int enable);
81
82
83
84
85
86
87
88
89
90
91
92
/*
* Enable/Disable keyboard repeat. Keyboard repeat defaults to off.
* 'delay' is the initial delay in ms between the time when a key is
* pressed, and keyboard repeat begins.
* 'interval' is the time in ms between keyboard repeat events.
*/
#define SDL_DEFAULT_REPEAT_DELAY 500
#define SDL_DEFAULT_REPEAT_INTERVAL 30
/*
* If 'delay' is set to 0, keyboard repeat is disabled.
*/
93
94
extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat (int delay, int interval);
extern DECLSPEC void SDLCALL SDL_GetKeyRepeat (int *delay, int *interval);
95
96
97
98
99
100
101
102
/*
* Get a snapshot of the current state of the keyboard.
* Returns an array of keystates, indexed by the SDLK_* syms.
* Used:
* Uint8 *keystate = SDL_GetKeyState(NULL);
* if ( keystate[SDLK_RETURN] ) ... <RETURN> is pressed.
*/
103
extern DECLSPEC Uint8 *SDLCALL SDL_GetKeyState (int *numkeys);
104
105
106
107
/*
* Get the current key modifier state
*/
108
extern DECLSPEC SDLMod SDLCALL SDL_GetModState (void);
109
110
111
112
113
/*
* Set the current key modifier state
* This does not change the keyboard state, only the key modifier flags.
*/
114
extern DECLSPEC void SDLCALL SDL_SetModState (SDLMod modstate);
115
116
117
118
/*
* Get the name of an SDL virtual keysym
*/
119
extern DECLSPEC char *SDLCALL SDL_GetKeyName (SDLKey key);
120
121
122
123
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
124
/* *INDENT-OFF* */
125
}
126
/* *INDENT-ON* */
127
128
129
130
#endif
#include "close_code.h"
#endif /* _SDL_keyboard_h */
131
132
/* vi: set ts=4 sw=4 expandtab: */