IWMSPacketStreamer.DoExtendedCommand (Visual Basic .NET)

The DoExtendedCommand method is called by the server to pass extended commands, which are defined by a plug-in, up the data path.

IWMSPacketStreamer.DoExtendedCommand(  szCommandName As String,
  pCommand As IWMSCommandContext,
  pCallback As IWMSPacketStreamerCallback,
  qwContext As UInt64
)

Arguments

	String containing the name of the custom command.
	IWMSCommandContextIWMSCommandContext Object (Visual Basic .NET) containing the associated context.
	IWMSPacketStreamerCallbackIWMSPacketStreamerCallback Object (Visual Basic .NET) used to report the status of the method call.
	UInt64 containing a value defined by the server to identify which call to DoExtendedCommand the plug-in is responding to when it calls IWMSPacketStreamerCallback.OnDoExtendedCommand. You must pass this value back unaltered.

Return Value

This method does not return a value. If the plug-in uses the IWMSEventLogIWMSEventLog Object (Visual Basic .NET) to log error information, it is recommended that it send NS_E_PLUGIN_ERROR_REPORTED (0xC00D157D) to the server in the lHr parameter. Typically, the server attempts to make plug-in error information available to the server object model, the Windows Event Viewer, and the troubleshooting list in the details pane of the Windows Media Services MMC. However, if the plug-in uses the IWMSEventLog object to log custom error information to the Windows Event Viewer, sending NS_E_PLUGIN_ERROR_REPORTED stops the server from also logging to the event viewer. For more information about plug-in error information, see Identifying Plug-in Errors.

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

Concepts

IWMSPacketStreamer Object (Visual Basic .NET)