2 /* Simple program: Loop, watching keystrokes
3 Note that you need to call SDL_PollEvent() or SDL_WaitEvent() to
4 pump the event loop and catch keystrokes.
13 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
14 static void quit(int rc
)
20 static void print_modifiers(void)
23 printf(" modifiers:");
24 mod
= SDL_GetModState();
53 static void PrintKey(SDL_keysym
*sym
, int pressed
)
55 /* Print the keycode, name and state */
57 printf("Key %s: %d-%s ", pressed
? "pressed" : "released",
58 sym
->sym
, SDL_GetKeyName(sym
->sym
));
60 printf("Unknown Key (scancode = %d) %s ", sym
->scancode
,
61 pressed
? "pressed" : "released");
64 /* Print the translated character, if one exists */
66 /* Is it a control-character? */
67 if ( sym
->unicode
< ' ' ) {
68 printf(" (^%c)", sym
->unicode
+'@');
71 printf(" (%c)", sym
->unicode
);
73 /* This is a Latin-1 program, so only show 8-bits */
74 if ( !(sym
->unicode
& 0xFF00) )
75 printf(" (%c)", sym
->unicode
);
77 printf(" (0x%X)", sym
->unicode
);
85 int main(int argc
, char *argv
[])
92 if ( SDL_Init(SDL_INIT_VIDEO
) < 0 ) {
93 fprintf(stderr
, "Couldn't initialize SDL: %s\n",SDL_GetError());
97 videoflags
= SDL_SWSURFACE
;
100 if ( argv
[argc
] && !strcmp(argv
[argc
], "-fullscreen") ) {
101 videoflags
|= SDL_FULLSCREEN
;
103 fprintf(stderr
, "Usage: %s [-fullscreen]\n", argv
[0]);
108 /* Set 640x480 video mode */
109 if ( SDL_SetVideoMode(640, 480, 0, videoflags
) == NULL
) {
110 fprintf(stderr
, "Couldn't set 640x480 video mode: %s\n",
115 /* Enable UNICODE translation for keyboard input */
116 SDL_EnableUNICODE(1);
118 /* Enable auto repeat for keyboard input */
119 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY
,
120 SDL_DEFAULT_REPEAT_INTERVAL
);
122 /* Watch keystrokes */
125 /* Check for events */
126 SDL_WaitEvent(&event
);
127 switch (event
.type
) {
129 PrintKey(&event
.key
.keysym
, 1);
132 PrintKey(&event
.key
.keysym
, 0);
134 case SDL_MOUSEBUTTONDOWN
:
135 /* Any button press quits the app... */