Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Pobierz pdf (Strona 76)

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

76 PanelView Plus CE-Specific Extensions to the WinCE API

Get Last Event

This function reads the last or newest Event from the Event log.

DWORD GetLastEvent (EVENT *pEvent);

Parameters:

pEvent

A pointer to an EVENT structure.

Return Values:

Remarks:

This function is typically used to establish the starting position for an

iteration loop that traverses the Event Long in the newest to oldest

direction; for example, last to first.

After establishing the starting position with this function, use

GetNextEvent() in a iteration loop with direction set to PRIOR. The

time/date stamps will be descending.

Portability:

This function is specific to the PanelView Plus CE.

Requirements:

GetLastEvent - Return Codes

Value Description

EVENT_SUCCESS The last; i.e. the most recent, Event was read

successfully and returned to the EVENT structure.

EVENT_ FILE_EMPTY No Event was returned The Event log is empty.

EVENT_FAIL No Event was returned. The operation failed.

Runs On Version Defined In Link To

PanelView Plus CE All EventLog.h EventLog.lib

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Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Strona 76