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IWMSPlaylist.CallerEntry (Visual Basic .NET)

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IWMSPlaylist.CallerEntry (Visual Basic .NET)

The CallerEntry property retrieves the playlist element pushed onto the playlist's call stack immediately before the specified playlist element.

Syntax

  IXMLDOMElement =
  
  Playlist
  .CallerEntry(
  
  pPlaylistEntry
  
  As IXMLDOMElement
  
  )

Parameters

pPlaylistEntry

[in] IXMLDOMElement object containing a playlist entry object.

Property Value

An IXMLDOMElement object.

Remarks

This property is read-only. A value of NULL is returned if a playlist element is specified that is not currently active or if it was the first playlist element that was pushed onto the call stack.

Example Code

Imports Microsoft.WindowsMediaServices.Interop
Imports System.Runtime.InteropServices

Private Sub GetPlaylistEntry()

    ' Declare variables.
    Dim Server As WMSServer
    Dim Players As IWMSPlayers
    Dim Player As IWMSPlayer
    Dim Playlist As IWMSPlaylist
    Dim PlaylistEntry As IXMLDOMElement
    Dim bVal As Boolean

Try
    ' Create the WMSServer object.
    Server = New WMSServer()

    ' Retrieve the IWMSPlayers object.
    Players = Server.Players

    ' Retrieve information about each requested playlist.
    For Each Player In Players

        ' Retrieve the playlist requested by the client
        ' if one exists.
        Playlist = Player.RequestedPlaylist

        ' Retrieve information about the current playlist entry.
        PlaylistEntry = Playlist.CurrentPlaylistEntry

        ' Retrieve the next playlist entry.
        PlaylistEntry = Playlist.CallerEntry(PlaylistEntry)

        ' Retrieve information about each playlist entry.
        While Not PlaylistEntry Is Nothing

            ' Retrieve a Boolean value indicating whether this
            ' playlist entry is cued.
            bVal = Playlist.IsStreamCued(PlaylistEntry)
            PlaylistEntry = Playlist.CallerEntry(PlaylistEntry)

        End While

    Next

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

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