IWMSBroadcastPublishingPoint Object (Visual Basic .NET)
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IWMSBroadcastPublishingPoint Object (Visual Basic .NET)
You can use the IWMSBroadcastPublishingPoint object to configure and run a broadcast publishing point.
In addition to the properties and methods inherited from the IWMSPublishingPoint object, the IWMSBroadcastPublishingPoint object exposes the following properties and methods.
| Property | Description |
| AllowClientToStartAndStop | Specifies and retrieves a Boolean value that indicates whether a stopped publishing point can be started when a client tries to receive a broadcast from it. |
| AllowStreamSplitting | Specifies and retrieves a Boolean value that indicates whether the stream can be split. |
| AnnouncementStreamFormats | Retrieves an IWMSAnnouncementStreamFormats object containing a collection of names of media files whose formats are used in a multicast broadcast. |
| BroadcastDataSinks | Retrieves an IWMSPlugins object containing a collection of broadcast data sink plug-ins that can be used to send content to a client. |
| BroadcastStatus | Retrieves an enumeration value indicating the status of the broadcast publishing point. |
| BufferSetting | Specifies and retrieves a member of the WMS_BUFFER_SETTING enumeration type indicating the amount of buffering that is done on a broadcast sink. |
| SharedPlaylist | Retrieves an IWMSPlaylist object for the broadcast publishing point. |
| UpTime | Retrieves the elapsed time, in seconds, that the publishing point has been running. |
| Method | Description |
| Announce | Updates the publishing points multicast configuration with data formats that have been added to the IWMSAnnouncementStreamFormats object. |
| AnnounceToNSCFile | Creates a multicast announcement (.nsc) file that is required for a client to connect to a multicast broadcast. |
| AnnounceToNSCStream | Retrieves an UCOMIStream object containing a file stream that can be used by a client to receive and render a broadcast. |
| ExportXML | Creates an XML file containing publishing point configuration data. |
| Start | Starts the broadcast publishing point. |
| StartArchive | Begins saving the streamed content to a file. |
| StartWithoutData | Initializes the publishing point and sends multicast beacons that enable clients to connect to a multicast when no content is being streamed. |
| Stop | Stops the broadcast publishing point. |
| StopArchive | Stops archiving the content streamed by the publishing point. |
Example Code
The following example illustrates how to retrieve an IWMSBroadcastPublishingPoint object.
Imports Microsoft.WindowsMediaServices.Interop
Imports System.Runtime.InteropServices
Private Sub RetrieveObj()
' 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
Catch excCom As COMException
' TODO: Handle COM exceptions.
Catch e As Exception
' TODO: Handle errors.
Finally
' TODO: Clean-up code goes here.
End Try
End Sub
See Also
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