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The CreatePlaylistParser method creates an IWMSPlaylistParserIWMSPlaylistParser Object (Visual Basic .NET) for use by the plug-in.
IWMSPlaylistParserPlugin.CreatePlaylistParser( pCommandContext As IWMSCommandContext,
pUser As IWMSContext,
pPresentation As IWMSContext,
dwFlags As UInt32,
pFactory As IWMSClassObject,
pBufferAllocator As IWMSBufferAllocator,
pCallback As IWMSPlaylistParserPluginCallback,
qwContext As UInt64
)
Arguments
IWMSCommandContextIWMSCommandContext Object (Visual Basic .NET) specifying the request command context that is passed in by the server. |
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IWMSContextIWMSContext Object (Visual Basic .NET) specifying the user context that is passed in by the server. |
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IWMSContext object specifying the presentation context that is passed in by the server. |
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Reserved for future use. |
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IWMSClassObjectIWMSClassObject Object (Visual Basic .NET) implemented by the server, that can be used as a class factory to create the other objects. |
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IWMSBufferAllocatorIWMSBufferAllocator Object (Visual Basic .NET) to be used to allocate a buffer for reading and writing. |
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IWMSPlaylistParserPluginCallbackIWMSPlaylistParserPluginCallback Object (Visual Basic .NET) that is used by the plug-in to report to the server the result of the object creation process. |
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UInt64 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 Value
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 IWMSEventLogIWMSEventLog Object (Visual Basic .NET) 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
Public Overloads Sub CreatePlaylistParser( _
ByVal pCommandContext As IWMSCommandContext, _
ByVal pUser As IWMSContext, _
ByVal pPresentation As IWMSContext, _
ByVal dwFlags As System.UInt32, _
ByVal pFactory As IWMSClassObject, _
ByVal pBufferAllocator As IWMSBufferAllocator, _
ByVal pCallback As IWMSPlaylistParserPluginCallback, _
ByVal qwContext As System.UInt64) _
Implements IWMSPlaylistParserPlugin.CreatePlaylistParser
Dim hr As Integer
Dim pParser As IWMSPlaylistParser
pParser = Me
pCallback.OnCreatePlaylistParser(hr, pParser, qwContext)
End Sub
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.