Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Pobierz pdf (Strona 49)

Publication 2711P-UM005A-EN-P - March 2007

PanelView Plus CE-Specific Extensions to the WinCE API 49

Requirements:

UserTimerClaim

This function is used to claim or release exclusive access to a specific

timer.

DWORD UserTimerClaim (DWORD dwTimerNumber, BOOL

bClaim);

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.

bClaim

TRUE to claim access to a timer, and FALSE to release it.

Return Values:

Runs On Version Defined In Link To

PanelView Plus CE

RAC6182

All usertimers.h usertimers.lib

UserTimerClaim - Return Codes

Value Description

USER_TIMER_OK Successfully claimed or released timer.

USER_TIMER_INVALID_TIMER The timer number is not valid for the system.

USER_TIMER_NOT_CLAIMED Another application already claimed the timer so

this application could not claim it.

USER_TIMER_ALREADY_CLAIMED This application has already claimed this timer.

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Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Strona 49