Take the following steps to create and run a multimedia convert application with processors using the LEADTOOLS Multimedia ConvertCtrl control.

1. Start Visual Studio .NET.
   
2. Choose File->New->Project... from the menu.
   
3. In the New Project dialog box, choose either Visual C# Projects or Visual Basic Projects in the Projects Type List, and choose Windows Application in the Templates List.
   
4. Type the project name as Multimedia Conversion with Processors in the Project Name field, and then if desired, type a new location for your project or select a directory using the Browse button, and then choose OK.
   
5. In the Solution Explorer window, right-click on the References folder, and select Add Reference... from the context menu. In the Add Reference dialog box, select the .NET tab and select Leadtools.Multimedia and click OK. If this dll does not appear under the .NET tab, you will need select the Browse tab and add it from the "<LEADTOOLS_INSTALLDIR>\Bin\DotNet\Win32" folder, by selecting the following DLL:
   • Leadtools.Multimedia.dll
   After browsing, click the Select button and then press the OK button to add the above DLL to the application.
   
6. Make sure Form1 is in design view. Go to the toolbox (View->Toolbox) and drag and drop a ConvertCtrl control on the form.
   NOTE: If you do not have ConvertCtrl in your toolbox, select Tools->Choose Toolbox Items from the menu. Click Browse and then select Leadtools.Multimedia.dll from "<LEADTOOLS_INSTALLDIR>\DotNet\Win32" and then click Open and then click OK. After adding it to the form, set the following properties on the convert control:
   

   Property	Value
   Name	_convertctrl
   Anchor	Top, Bottom, Left, Right
   BackColor	Black

   
   
7. Go to the toolbox (View->Toolbox) and drag and drop a ProgressBar control on the form (below the convert control) and set the following properties:
   

   Property	Value
   Name	_progress
   Anchor	Bottom, Left, Right
   Step	1

   
   
8. Go to the toolbox (View->Toolbox) and drag and drop two Button controls to the bottom of the form and set the following properties:
   

   Property	Value
   Name	_buttonProcessor
   Text	Processor...
   Anchor	Bottom, Right

   
   
9. Switch Form1 to code view (right-click Form1 in the solution explorer then select View Code) and add the following lines at the beginning of the file:
   [Visual Basic]
Imports Leadtools.Multimedia
[C#]
   

               using Leadtools.Multimedia;
               
   

10. Declare the following private variable:
    [Visual Basic]
Private _sourceFile As String
Private _targetFile As String
Private _addedProc As Boolean
[C#]

    
    private string _sourceFile;
    private string _targetFile;
    private bool _addedProc;
                
    

11. Add an event handler to the Form1 Load event and code it as follows:
    [Visual Basic]
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
_sourceFile = @"<LEADTOOLS_INSTALLDIR>\Media\DaDa_DVD_MPEG2.mpg"
_targetFile = "DaDa_MJPEG_Deinterlaced.avi"
_addedProc = False
End Sub
[C#]

    
    private void Form1_Load(object sender, System.EventArgs e)
    {
       _sourceFile = @"<LEADTOOLS_INSTALLDIR>\Media\DaDa_DVD_MPEG2.mpg";
       _targetFile = "DaDa_MJPEG_Deinterlaced.avi";
       _addedProc = false;
    }
                
    

12. Add an event handler to the _convertctrl Progress event and code it as follows:
    [Visual Basic]
Private Sub _convertctrl_Progress(ByVal sender As System.Object, ByVal e As ProgressEventArgs) Handles _convertctrl.Progress
_progress.Value = CInt((_progress.Maximum * e.percent / 100))
End Sub
[C#]

    
    private void _convertctrl_Progress(object sender, ProgressEventArgs e)
    {
       _progress.Value = (int)(_progress.Maximum * e.percent / 100);
    }
                
    

13. Add an event handler to the _convertctrl Complete event and code it as follows:
    [Visual Basic]
Private Sub _convertctrl_Complete(ByVal sender As System.Object, ByVal e As EventArgs) Handles _convertctrl.Complete
MessageBox.Show("Conversion Complete")
_buttonProcessor.Enabled = True
_buttonConvert.Enabled = True
End Sub
[C#]

    
    private void _convertctrl_Complete(object sender, EventArgs e)
    {
       MessageBox.Show("Conversion Complete");
       _buttonProcessor.Enabled = true;
       _buttonConvert.Enabled = true;
    }
                
    

14. Add an event handler to the _buttonProcessor Click event and code it as follows:
    [Visual Basic]
Private Sub _buttonProcessor_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _buttonProcessor.Click
Try
Dim deinterlace As Processor = _convertctrl.VideoProcessors.Deinterlace
Dim procName As String = deinterlace.Name
If (_addedProc = False) Then
_convertctrl.SelectedVideoProcessors.Add(deinterlace)
_addedProc = True
End If
If (_convertctrl.SelectedVideoProcessors[procName].HasDialog(ProcessorDlg.Properties)) Then
_convertctrl.SelectedVideoProcessors[procName].ShowDialog(ProcessorDlg.Properties, this)
End If
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
[C#]
private void _buttonProcessor_Click(object sender, System.EventArgs e)
{
try
{
Processor deinterlace = _convertctrl.VideoProcessors.Deinterlace;
string procName = deinterlace.Name;
if (!_addedProc)
{
_convertctrl.SelectedVideoProcessors.Add(deinterlace);
_addedProc = true;
}
if (_convertctrl.SelectedVideoProcessors[procName].HasDialog(ProcessorDlg.Properties))
_convertctrl.SelectedVideoProcessors[procName].ShowDialog(ProcessorDlg.Properties, this);
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message);
}
}

15. Add an event handler to the _buttonConvert Click event and code it as follows:
    [Visual Basic]
Private Sub _buttonConvert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _buttonConvert.Click
Try
_convertctrl.Preview = True
_convertctrl.SourceFile = _sourceFile
_convertctrl.VideoCompressors.MJpeg.Selected = True
_convertctrl.TargetFile = _targetFile

_convertctrl.StartConvert()

_buttonProcessor.Enabled = False
_buttonConvert.Enabled = False
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
[C#]
    

                private void _buttonConvert_Click(object sender, System.EventArgs e)
    {
       try
       {
          _convertctrl.Preview = true;
          _convertctrl.SourceFile = _sourceFile;
          _convertctrl.VideoCompressors.MJpeg.Selected = true;
          _convertctrl.TargetFile = _targetFile;
    
          _convertctrl.StartConvert();
    
          _buttonProcessor.Enabled = false;
          _buttonConvert.Enabled = false;
       }
       catch (Exception ex)
       {
          MessageBox.Show(this, ex.Message);
       }
    }
    
    

16. Build, and Run the program to test it.

 

 

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