IWMSEventLog.LogEvent (C#)

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IWMSEventLog.LogEvent (C#)

The LogEvent method sends an event to the Windows Event Viewer.

Syntax

  void
  

Parameters

pPluginNamedValues

[in] IWMSNamedValues object passed by the server to the plug-in when it calls the IWMSBasicPlugin.InitializePlugin method. The plug-in does not need to use the object.

ErrorLevel

[in] Member of the WMS_EVENT_LOG_LEVEL enumeration type. This must be one of the following values.

Value	Description
WMS_EVENT_LOG_LEVEL_ERROR	Indicates significant problems that the end user must be informed of. Error events usually indicate a loss of functionality or data. For example, if a plug-in fails, it must, if possible, log an error event. The server disables any plug-in that logs an error. Furthermore, if an authentication or authorization plug-in fails, the server will no longer allow new connections or allow clients that are connected to request actions that require authorization.
WMS_EVENT_LOG_LEVEL_WARNING	Indicates problems that are not immediately significant, but that can lead to future problems.
WMS_EVENT_LOG_LEVEL_INFORMATION	Indicates infrequent but significant successful operations.

 lErrorCode

[in] int containing the error code associated with the event. If the plug-in is sending an information or warning event, specify 0.

bstrAdditionalInfo

[in] string containing additional information about the event.

Return Values

This method does not return a value.

Example Code

public void InitializePlugin(IWMSContext pServerContext,
    WMSNamedValues pNamedValues,
    IWMSClassObject pClassFactory)
{
    try
    {
        m_ClassFactory = pClassFactory;
        m_NamedValues = pNamedValues;

        Guid EventLogGuid = typeof(IWMSEventLog).GUID;
        object EventLogObject = (object)m_EventLog;

        pServerContext.GetAndQueryIUnknownValue(
                        WMSDefines.WMS_SERVER_EVENT_LOG,
                        WMSDefines.WMS_SERVER_EVENT_LOG_ID,
                        ref EventLogGuid,
                        out (object)EventLogObject, 0);

        m_EventLog = (IWMSEventLog)EventLogObject;
        m_EventLog.LogEvent(m_NamedValues,
                      WMS_EVENT_LOG_LEVEL.WMS_EVENT_LOG_LEVEL_INFORMATION,
                      0, "Plug-in initialized.");
    }
    catch( Exception e )
    {
        // TODO: Handle exceptions.
    }
}

Requirements

Reference: Add a reference to Microsoft.WindowsMediaServices.

Namespace: Microsoft.WindowsMediaServices.Interop.

Assembly: Microsoft.WindowsMediaServices.dll.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Server 2008.

See Also

• IWMSEventLog Object (C#)

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