timer interval

[wala]

I need to count and add up each each elapsed second in my timer. this seems not to work , it is just outputting 1,1,1,1, ... but I need 1,2,3,4,5.....

int CVICALLBACK timer1 (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 
 static double    time1;
 double time2;
 double interval = 0;
 
 
 switch (event)
 {
  case EVENT_TIMER_TICK:
   
   
    time1 = *( ( double * ) eventData1 ); // current time

                time2 = *( ( double * ) eventData2 ); // time elapsed since the last EVENT_TIMER_TICK callback.
   
    interval = interval + time2;
    
    printf("ammmmmmm");
    printf("Interval = %.0f",interval);
    
   break;
 }
 return 0;
}

[Wolfgang]

Well, your variable interval is local: every time the timer callback is called, it is reset to zero -> use a global declaration instead

[wala]

Thanks, that helps.