IWMSPlaylistParserPlugin.CreatePlaylistParser (C#)

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IWMSPlaylistParserPlugin.CreatePlaylistParser (C#)

The CreatePlaylistParser method creates an IWMSPlaylistParser object for use by the plug-in.

Syntax

Parameters

pCommandContext

IWMSCommandContext object specifying the request command context that is passed in by the server.

pUser

IWMSContext object specifying the user context that is passed in by the server.

pPresentation

IWMSContext object specifying the presentation context that is passed in by the server.

dwFlags

Reserved for future use.

pFactory

IWMSClassObject object implemented by the server, that can be used as a class factory to create the other objects.

pBufferAllocator

IWMSBufferAllocator object to be used to allocate a buffer for reading and writing.

pCallback

IWMSPlaylistParserPluginCallback object that is used by the plug-in to report to the server the result of the object creation process.

qwContext

ulong containing a value defined by the server to identify which call to CreatePlaylistParser the plug-in is responding to when it calls IWMSPlaylistParserPluginCallback.OnCreatePlaylistParser. You must pass this value back unaltered when you call OnCreatePlaylistParser.

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

This method is implemented by the plug-in and called by the server.

Example Code

void IWMSPlaylistParserPlugin.CreatePlaylistParser(
    IWMSCommandContext pCommandContext,
    IWMSContext pUser,
    IWMSContext pPresentation,
    uint dwFlags,
    IWMSClassObject pFactory,
    IWMSBufferAllocator pBufferAllocator,
    IWMSPlaylistParserPluginCallback pCallback,
    ulong qwContext)
{
    IWMSPlaylistParser pParser = this;
    pCallback.OnCreatePlaylistParser(S_OK, pParser, qwContext);
}

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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