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The OpenEventLog function opens a handle to an event log.

Declare Function OpenEventLog Lib "advapi32.dll" Alias "OpenEventLogA" (ByVal lpUNCServerName As String, ByVal lpSourceName As String) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Win9x/ME: Not supported


Parameter Information
- lpUNCServerName
[in] Pointer 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.

- lpSourceName
[in] Pointer to a null-terminated string that specifies the name of the logfile that the returned handle will reference. This can be the Application, Security, or System logfile, or a custom registered logfile. If a custom registered logfile name cannot be found, the event logging service opens the Application logfile, however, there will be no associated message or category string file.

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.

Last update: 07 April 2006