Rockwell Automation 2711P Software Development Kit User Manual - Manual (Page 50)

Publication 2711P-UM005A-EN-P - March 2007
50 PanelView Plus CE-Specific Extensions to the WinCE API
Remarks:
A timer must be claimed for any other function that takes a
TimerNumber as a parameter to be used. A timer must be released to
allow any other application to claim and use the timer.
The mechanism will support a system that has multiple critical timers.
When releasing a timer, any handle created from
UserTimerGetWaitEvent() is closed by this operation. The user should
not close the handle.
Portability:
The RAC6182 does not have a critical timer; hence the attribute
USERTIMER_CRITICAL is not supported on the RAC6182.
Requirements:
UserTimerRequestFrequency
This function sets the frequency of a claimed timer.
DWORD UserTimerRequestFrequency (DWORD
dwTimerNumber, DWORD *pdwFrequency);
Parameters:
dwTimerNumber
The Timer Number is 0 based; i.e., if 2 timers are present on the
system, they are timer 0 and timer 1. When specifying a critical timer,
the flag USERTIMER_CRITICAL must be or’d with the Timer Number.
The range is 0 to MAX_TIMER_NUMBER.
Runs On Version Defined In Link To
PanelView Plus CE
RAC6182
All usertimers.h usertimers.lib