TargetStream Property (ConvertCtrl)

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual Stream TargetStream {get; set;}

'Declaration
 
Public Overridable Property TargetStream As Stream

'Usage
 
Dim instance As ConvertCtrl
Dim value As Stream
 
instance.TargetStream = value
 
value = instance.TargetStream

public virtual Stream TargetStream {get; set;}

 get_TargetStream();
 set_TargetStream(value);

public:
virtual property Stream^ TargetStream {
   Stream^ get();
   void set (    Stream^ value);
}

Property Value

A System.IO.Stream object for the target stream.

This property allows the user to assign a Stream derived object as the media target for the conversion process. The TargetType will be set to TargetObjectType.Stream. Assignment can raise an error exception.

For more information, refer to the Error Codes.

Note: When setting this property, the convert control must be in the stopped state.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public _result As Boolean = False
      Public _form As ConvertCtrlForm = New ConvertCtrlForm()
      ' input and output file names
      Public _inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.mpeg")
      Public _outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_SourceStreamExample.avi")

      Public Sub SourceStreamExample()
         ' reference the convert control
         Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

         Try
            ' set the source stream
            convertctrl.SourceStream = New StreamReader(_inFile).BaseStream

                 ' select the video and audio compressors
            convertctrl.VideoCompressors.Mpeg2.Selected = True
            convertctrl.AudioCompressors.AC3.Selected = True

            ' set the target file and format
            convertctrl.TargetFile = _outFile
            convertctrl.TargetFormat = TargetFormatType.AVI

            ' subscribe to the complete event to check our result
            AddHandler convertctrl.Complete, AddressOf ConvertCtrl_Complete

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

            ' convert it!
            convertctrl.StartConvert()
         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 convertctrl.State = ConvertState.Running
            Application.DoEvents()
         Loop
      End Sub

      Private Sub ConvertCtrl_Complete(ByVal sender As Object, ByVal e As EventArgs)
         ' set the result
         _result = File.Exists(_outFile)
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
End Class

public bool _result = false;
      public ConvertCtrlForm _form = new ConvertCtrlForm();
      // input and output file names
      public string _inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.mpeg");
      public string _outFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_SourceStreamExample.avi");

      public void SourceStreamExample()
      {
         // reference the convert control
         ConvertCtrl convertctrl = _form.ConvertCtrl;

         try
         {
            // set the source stream
            convertctrl.SourceStream = new StreamReader(_inFile).BaseStream;

            // select video and audio compressors
            convertctrl.VideoCompressors.Mpeg2.Selected = true;
            convertctrl.AudioCompressors.AC3.Selected = true;

            // set the target file and format
            convertctrl.TargetFile = _outFile;
            convertctrl.TargetFormat = TargetFormatType.AVI;

            // subscribe to the complete event to check our result
            convertctrl.Complete += new EventHandler(ConvertCtrl_Complete);

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

            // convert it!
            convertctrl.StartConvert();
         }
         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 (convertctrl.State == ConvertState.Running)
            Application.DoEvents();
      }

      void ConvertCtrl_Complete(object sender, EventArgs e)
      {
         // set the result
         _result = File.Exists(_outFile);
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ConvertCtrl Class
ConvertCtrl Members
ResetTarget Method