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SDL_SetTimer(3) SDL API Reference SDL_SetTimer(3)
SDL_SetTimer - Set a callback to run after the specified number of milliseconds has
int SDL_SetTimer(Uint32 interval, SDL_TimerCallback callback);
/* Function prototype for the timer callback function */ typedef Uint32 (*SDL_TimerCall-
Set a callback to run after the specified number of milliseconds has elapsed. The callback
function is passed the current timer interval and returns the next timer interval. If the
returned value is the same as the one passed in, the periodic alarm continues, otherwise a
new alarm is scheduled.
To cancel a currently running timer, call SDL_SetTimer(0, NULL);
The timer callback function may run in a different thread than your main constant, and so
shouldn't call any functions from within itself.
The maximum resolution of this timer is 10 ms, which means that if you request a 16 ms
timer, your callback will run approximately 20 ms later on an unloaded system. If you
wanted to set a flag signaling a frame update at 30 frames per second (every 33 ms), you
might set a timer for 30 ms (see example below).
If you use this function, you need to pass SDL_INIT_TIMER to SDL_Init().
This function is kept for compatibility but has been superseded by the new timer
functions SDL_AddTimer and SDL_RemoveTimer which support multiple timers.
SDL Tue 11 Sep 2001, 23:01 SDL_SetTimer(3)
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