IWMSPacketStreamer.SelectStream (C#)

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IWMSPacketStreamer.SelectStream (C#)

The SelectStream method is called by the server to specify the streams that are sent down a data path.

Syntax

Parameters

pCommand

IWMSCommandContext object containing the associated context.

pStreamSwitchDescList

IWMSStreamSwitchDescriptionList object containing stream IDs.

pCallback

IWMSPacketStreamerCallback object used to report the status of the method call.

qwContext

ulong containing a value defined by the server to identify which call to SelectStream the plug-in is responding to when it calls IWMSPacketStreamerCallback.OnSelectStream. You must pass this value back unaltered.

Return Values

This method does not return a value. To report an error, the plug-in can throw a COMException object to the server. If the plug-in uses the IWMSEventLog object to log error information, it is recommended that it throw NS_E_PLUGIN_ERROR_REPORTED (0xC00D157D). 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 send custom error information to the Windows Event Viewer, throwing 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.

Remarks

If this method returns and does not call SelectStream on an upstream module in which it passes in the original arguments, the IWMSPacketStreamerCallback.OnSelectStream method must be called to let the input module pass results directly to the output module.

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

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