OpenEventLog info  Overview  Group

The OpenEventLog function opens a handle of an event log.

HANDLE OpenEventLog(

LPCTSTR lpUNCServerName,	// pointer to server name
LPCTSTR lpSourceName	// pointer to source name
);

Parameters

lpUNCServerName

Points to a null-terminated string that specifies the Universal Naming Convention (UNC) name of the server on which the event log is to be opened. If this parameter is NULL, the log is opened on the local computer.

lpSourceName

Points to a null-terminated string that specifies the name of the source that the returned handle will reference. The source name must be a subkey of a logfile entry under the EventLog key in the registry. For example, the source name WinApp would be valid if the registry had the following form:

HKEY_LOCAL_MACHINE 

  System 

    CurrentControlSet 

      Services 

        EventLog 

          Application 

            WinApp 

          Security 

          System 

 

If the source name cannot be found, the event logging service uses the Application logfile with no message files for the event identifier or category.

Return Values

If the function succeeds, the return value is the handle of an event log.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.

See Also

ClearEventLog, CloseEventLog, GetNumberOfEventLogRecords, GetOldestEventLogRecord, ReadEventLog, ReportEvent 

See:

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