SDL_SetTimer man page on Syllable

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SDL_SetTimer(3)		       SDL API Reference	       SDL_SetTimer(3)

NAME
       SDL_SetTimer - Set a callback to run after the specified number of mil‐
       liseconds has elapsed.

SYNOPSIS
       #include "SDL.h"

       int SDL_SetTimer(Uint32 interval, SDL_TimerCallback callback);

CALLBACK
       /* Function prototype for the timer callback function */ typedef Uint32
       (*SDL_TimerCallback)(Uint32 interval);

DESCRIPTION
       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().

	      Note:

	      This  function is kept for compatibility but has been superseded
	      by the new  timer	 functions  SDL_AddTimer  and  SDL_RemoveTimer
	      which support multiple timers.

EXAMPLES
       SDL_SetTimer((33/10)*10, my_callback);

SEE ALSO
       SDL_AddTimer

SDL			    Tue 11 Sep 2001, 23:01	       SDL_SetTimer(3)
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