IWMSBroadcastPublishingPoint.StartWithoutData (Visual Basic .NET)
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IWMSBroadcastPublishingPoint.StartWithoutData (Visual Basic .NET)
The StartWithoutData method initializes the publishing point and sends multicast beacons that enable clients to connect to a multicast when no content is being streamed.
Syntax
IWMSBroadcastPublishingPoint .StartWithoutData()
Parameters
This method takes no parameters.
Return Values
If this method succeeds, it does not return a value. If it fails, it returns an error number.
Number | Description |
0x8007000E | The account that the WMS service is running under does not have access rights to the content requested. |
0x00000002 | The server was not able to find the file referenced by the Path property of the publishing point. |
0x00000003 | The server was not able to find the path referenced by the Path property of the publishing point. |
0xC00D0006L | The destination server indicated in the path property exists, but the server was unable to establish a connection to the destination server. |
0xC00D14B5L | The playlist that the server is attempting to stream does not reference any media streams or files. |
0xC00D001AL | The server was not able to find the file referenced by the Path property of the publishing point. |
0xC00D2EE8L | The server that the publishing point attempted to connect to does not support the requested action. |
0xC00D14B6L | The playlist that the server is attempting to parse contains a syntax error. |
0xC00D157FL | The server was not able to find a playlist parser plug-in to access the playlist referenced by the Path property of the publishing point. |
0xC00D145AL | The publishing point has already been removed. |
0xC00D157EL | The server was not able to find a data source plug-in to access the data referenced by the Path property of the publishing point. |
0xC00D151EL | The version of the playlist that the server is attempting to stream is either not supported by the server or is invalid. Version information in a playlist is indicated by the <WSX> element. |
Remarks
You can use this method to initialize the publishing point before starting it, thereby minimizing latency at the start of the broadcast. Multicast beacons are messages sent by the server that enable a client to remain connected to a multicast broadcast when the publishing point is not streaming content.
Example Code
Imports Microsoft.WindowsMediaServices.Interop Imports System.Runtime.InteropServices Private Sub BeginWOData() ' Declare variables. Dim Server As WMSServer Dim PubPoints As IWMSPublishingPoints Dim PubPoint As IWMSPublishingPoint Dim BCPubPoint As IWMSBroadcastPublishingPoint Dim i As Integer Try ' Create the WMSServer object. Server = New WMSServer() ' Retrieve the IWMSPublishingPoints object. PubPoints = Server.PublishingPoints ' Retrieve each publishing point and retrieve the ' IWMSBroadcastPublishingPoint object. For i = 0 To Server.PublishingPoints.Count – 1 PubPoint = PubPoints.Item(i) If PubPoint.Type = WMS_PUBLISHING_POINT_TYPE.WMS_PUBLISHING_POINT_TYPE_BROADCAST Then BCPubPoint = PubPoint Exit For End If Next i ' Initialize the publishing point. BCPubPoint.StartWithoutData() Catch excCom As COMException ' TODO: Handle COM exceptions. Catch exc As Exception ' TODO: Handle errors. Finally ' TODO: Clean-up code goes here. 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 family, Windows Server 2008 family.
See Also
- IWMSBroadcastPublishingPoint Object (Visual Basic .NET)
- IWMSBroadcastPublishingPoint.Start (Visual Basic .NET)
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