ForceNoRecompressionPreview Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Property ForceNoRecompressionPreview As Boolean

'Usage
 
Dim instance As ConvertCtrl
Dim value As Boolean
 
instance.ForceNoRecompressionPreview = value
 
value = instance.ForceNoRecompressionPreview

public virtual bool ForceNoRecompressionPreview {get; set;}

public:
virtual property bool ForceNoRecompressionPreview {
   bool get();
   void set (    bool value);
}

Property Value

true if Forcing No Recompression Preview is enabled; false, otherwise.

Enabling this property slows down the file conversions. Use this when converting input streams without recompression. The default value is false.

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

Copy Code

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
Public Sub ForceNoRecompressionPreviewExample()
   ' reference the convert control
   Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

   ' input and output files
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ForceNoRecompressionPreviewExample.avi")

   Try
      ' set the source for conversion
      convertctrl.SourceFile = inFile

      ' set the target output format
      convertctrl.TargetFormat = TargetFormatType.ISO

      ' no recompression for video and audio
      convertctrl.VideoCompressors.Selection = -1
      convertctrl.AudioCompressors.Selection = -1

      ' set the target output file and format
      convertctrl.TargetFile = outFile

      ' enable preview
      convertctrl.Preview = True

           ' force preview to be active even though the conversion is without recompression
           convertctrl.ForceNoRecompressionPreview = True

      ' start convert
      convertctrl.StartConvert()

      ' set the result
      _result = True
   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

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void ForceNoRecompressionPreviewExample()
{
   // reference the convert control
   ConvertCtrl convertctrl = _form.ConvertCtrl;

   // input and output files
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ForceNoRecompressionPreviewExample.avi");

   try
   {
      // set the source for conversion
      convertctrl.SourceFile = inFile;

      // set the target output format
      convertctrl.TargetFormat = TargetFormatType.ISO;

      // no recompression for video and audio
      convertctrl.VideoCompressors.Selection = -1;
      convertctrl.AudioCompressors.Selection = -1;

      // set the target output file and format
      convertctrl.TargetFile = outFile;

      // enable preview
      convertctrl.Preview = true;

      // force preview to be active even the conversion is without recompression
      convertctrl.ForceNoRecompressionPreview = true;

      // start convert
      convertctrl.StartConvert();

      // set the result
      _result = true;
   }
   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();
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

ConvertCtrl Class
ConvertCtrl Members