IWMSPlaylistParserCallback.OnWritePlaylist (Visual Basic .NET)
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IWMSPlaylistParserCallback.OnWritePlaylist (Visual Basic .NET)
The OnWritePlaylist method returns to the server the result of a WritePlaylist call.
Syntax
Parameters
hr
Int32 specifying the results of a WritePlaylist call.
pBuffer
INSSBuffer object that contains the written playlist.
qwContext
ulong containing a value defined by the server to identify which call to IWMSPlaylistParser.WritePlaylist the plug-in is responding to when it calls OnWritePlaylist. You must pass this value back unaltered.
Return Values
This method does not return a value. If the plug-in uses the IWMSEventLog object 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.
Remarks
This method is implemented by the server and called by the plug-in.
Example Code
Public Sub WritePlaylist( _
ByVal pPlaylist As interop_msxml.IXMLDOMDocument, _
ByVal pCallback As IWMSPlaylistParserCallback, _
ByVal qwContext As System.UInt64) _
Implements IWMSPlaylistParser.WritePlaylist
Try
' TODO: Write the playlist.
pCallback.OnWritePlaylist(S_OK, pINSSBuffer, qwContext)
Catch e As Exception
pCallback.OnWritePlaylist(E_FAIL, pINSSBuffer, qwContext)
End Try
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.
See Also
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