The GetOldestEventLogRecord function retrieves the absolute record number of the oldest record in the specified event log.
BOOL GetOldestEventLogRecord(
HANDLE hEventLog, // handle to event log
PDWORD OldestRecord // buffer for number of oldest record
);
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Windows NT: Requires version 3.1 or later.
Windows: Unsupported.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Import Library: Use advapi32.lib.
Event Logging Overview, Event Logging Functions, GetNumberOfEventLogRecords, OpenBackupEventLog, OpenEventLog