ReportEvent info  Overview  Group

The ReportEvent function writes an entry at the end of the specified event log.

BOOL ReportEvent(

Parameters

hEventLog

Identifies the event log. This handle is returned by the RegisterEventSource function.

wType

Specifies the type of event being logged. This parameter can be one of the following values:

Value	Meaning
EVENTLOG_ERROR_TYPE	Error event
EVENTLOG_WARNING_TYPE	Warning event
EVENTLOG_INFORMATION_TYPE	Information event
EVENTLOG_AUDIT_SUCCESS	Success Audit event
EVENTLOG_AUDIT_FAILURE	Failure Audit event

For more information about event types, see Event Logging.

wCategory

Specifies the event category. This is source-specific information; the category can have any value.

dwEventID

Specifies the event identifier. The event identifier specifies the message that goes with this event as an entry in the message file associated with the event source.

lpUserSid

Points to the current user’s security identifier. This parameter can be NULL if the security identifier is not required.

wNumStrings

Specifies the number of strings in the array pointed to by the lpStrings parameter. A value of zero indicates that no strings are present.

dwDataSize

Specifies the number of bytes of event-specific raw (binary) data to write to the log. If this parameter is zero, no event-specific data is present.

lpStrings

Points to a buffer containing an array of null-terminated strings that are merged into the message before Event Viewer displays the string to the user. This parameter must be a valid pointer (or NULL), even if wNumStrings is zero. Each string has a limit of 32K bytes.

lpRawData

Points to the buffer containing the binary data. This parameter must be a valid pointer (or NULL), even if the dwDataSize parameter is zero.

Return Values

If the function succeeds, the return value is nonzero, indicating that the entry was written to the log.

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

Remarks

This function is used to log an event. The entry is written to the end of the configured logfile for the source identified by the hEventLog parameter. The ReportEvent function adds the time, the user name, the entry’s length, and the offsets before storing the entry in the log.

See Also

ClearEventLog, CloseEventLog, OpenEventLog, ReadEventLog, RegisterEventSource 

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