Cancels a specified interval timer previously set by proevt( ). You can call this function even if the time interval has already expired:

Syntax

void
procncel ( pflag )
  char *pflag;
pflag
Points to a timer flag previously passed to proevt( ) to start the specified time interval. This flag specifies one of many interval timers that you can set with proevt( ).
Note: This function applies only to UNIX systems. For more information on using interval timers, see Host Language Call Interface.

See Also:

prockint( ) - Test for Interrupt Key, proevt( ) - Set Interval Timer, prosleep( ) - Sleep For Specified Interval, prowait( ) - Wait For Timer To Expire