NAME

       SDL_SetTimer  -  Set  a  callback  to  run  after the specified number of milliseconds 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              This function is kept for compatibility but has been superseded by  the  new  timer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