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SourceStream Property
See Also 
Leadtools.Multimedia Namespace > PlayCtrl Class : SourceStream Property



Gets or sets the media source stream.

Syntax

Visual Basic (Declaration) 
Public Overridable Property SourceStream As Stream
Visual Basic (Usage)Copy Code
Dim instance As PlayCtrl
Dim value As Stream
 
instance.SourceStream = value
 
value = instance.SourceStream
C# 
public virtual Stream SourceStream {get; set;}
C++/CLI 
public:
virtual property Stream^ SourceStream {
   Stream^ get();
   void set (    Stream^ value);
}

Property Value

A System.IO.Stream object for the media source stream.

Example

Visual BasicCopy Code
Public _result As Boolean = False
      Public _form As PlayCtrlForm = New PlayCtrlForm()
      Public Sub SourceStreamExample()
         ' reference the play control
         Dim playctrl As PlayCtrl = _form.PlayCtrl

         ' input and output file names
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi")

         Try
            ' turn off auto start
            playctrl.AutoStart = False

            ' subscribe to the complete event to check our result
            AddHandler playctrl.MediaEvent, AddressOf PlayCtrl_MediaEvent

            ' set the source stream
            playctrl.SourceStream = New StreamReader(inFile).BaseStream

            ' set the allowed streams
            playctrl.AllowedStreams = StreamFormatType.AudioVideoCC

            ' play it!
            playctrl.Run()
         Catch e1 As Exception
            _result = False
         End Try

         ' we'll loop on the state and pump messages for this example.
         ' but you should not need to if running from a Windows Forms application.
         Do While playctrl.State = PlayState.Running
            Application.DoEvents()
         Loop
      End Sub

      Private Sub PlayCtrl_MediaEvent(ByVal sender As Object, ByVal e As MediaEventArgs)
         ' set the result
         If e.eventCode = MediaEventCode.EC_COMPLETE Then
            _result = True
         End If
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class
C#Copy Code
public bool _result = false;
      public PlayCtrlForm _form = new PlayCtrlForm();
      public void SourceStreamExample()
      {
         // reference the play control
         PlayCtrl playctrl = _form.PlayCtrl;

         // input and output file names
         string inFile = Path.Combine(LEAD_VARS.MediaDir,"PlayCtrl_Source.avi");

         try
         {
            // turn off auto start
            playctrl.AutoStart = false;

            // subscribe to the complete event to check our result
            playctrl.MediaEvent += new MediaEventHandler(PlayCtrl_MediaEvent);

            // set the source stream
            playctrl.SourceStream = new StreamReader(inFile).BaseStream;

            // set the allowed streams
            playctrl.AllowedStreams = StreamFormatType.AudioVideoCC;

            // play it!
            playctrl.Run();
         }
         catch (Exception)
         {
            _result = false;
         }

         // we'll loop on the state and pump messages for this example.
         // but you should not need to if running from a Windows Forms application.
         while (playctrl.State == PlayState.Running)
            Application.DoEvents();
      }

      void PlayCtrl_MediaEvent(object sender, MediaEventArgs e)
      {
         // set the result
         if (e.eventCode == MediaEventCode.EC_COMPLETE)
            _result = true;
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
}

Remarks

Use this property to assign a Stream-derived object as the media source for the conversion process. The SourceType will be set to SourceObjectType.Stream. Assignment can raise an error exception. For more information, refer to the Error Codes. Note: When setting this property, the Play control must be in the stopped state.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also