create a task in cvi

I want to create a task which will be cyclical called (10ms,50ms,100ms).

In this task I want to call a function.

Shown below is the main call of my programm.

When the userinterface is created and started the programm stand in the following position (errChk (RunUserInterface ())

So it is impossible to place a while(1){} Loop in the main.

int main (int argc, char *argv[])
{
 int error = 0;
 
 /* initialize and load resources */
 nullChk (InitCVIRTE (0, argv, 0));
 errChk (panelHandle = LoadPanel (0, "Test1.uir", PANEL));
 
 /* display the panel and run the user interface */
 errChk (DisplayPanel (panelHandle));

 errChk (RunUserInterface ());   
Error:
 /* clean up */
 if (panelHandle > 0)
  DiscardPanel (panelHandle);
 return 0;
}

Thank you for your support.