TargetVCRControl Property (ConvertCtrl)

Gets the target VCR control object.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable ReadOnly Property TargetVCRControl As VCRControl

'Usage
 
Dim instance As ConvertCtrl
Dim value As VCRControl
 
value = instance.TargetVCRControl

public virtual VCRControl TargetVCRControl {get;}

public:
virtual property VCRControl^ TargetVCRControl {
   VCRControl^ get();
}

Property Value

A VCRControl object.

Remarks

The VCRControl object is used to control VCR functionality available in the target device.

Example

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 _convertctrl As ConvertCtrl
Public Sub TargetDevicesExample()
   ' reference the convert control
   _convertctrl = _form.ConvertCtrl

   ' input file
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.mpeg")

   Try
      ' check to see if we have the desired target device
      If _convertctrl.TargetDevices("Microsoft DV Camera and VCR") Is Nothing Then
         Throw New Exception("No Microsoft DV Camera target devices available!")
      End If

      ' set the video capture device, use your capture device name here
      _convertctrl.SourceFile = inFile

           ' set video and audio compressors to none
      _convertctrl.VideoCompressors.Uncompressed.Selected = True
      _convertctrl.AudioCompressors.Uncompressed.Selected = True

      ' select the target format
      _convertctrl.TargetFormats(TargetFormatType.DVSD).Selected = True

      ' select only Audio for this example
      _convertctrl.AllowedStreams = StreamFormatType.AudioVideo

      ' set a target device
      _convertctrl.TargetDevices("Microsoft DV Camera and VCR").Selected = True

      ' show the target format dialog
      If _convertctrl.HasDialog(ConvertDlg.TargetFormat) Then
         _convertctrl.ShowDialog(ConvertDlg.TargetFormat, _form)
      End If

      ' check the target device VCRControl 
           If _convertctrl.TargetVCRControl Is Nothing OrElse (_convertctrl.TargetVCRControl.DeviceType = VCRControlDeviceType.NotPresent _
                                                               OrElse _convertctrl.TargetVCRControl.DeviceType = VCRControlDeviceType.Unknown) Then
               Throw New Exception("MS DV Camera's Target VCR control is not present!")
           End If

      ' start recording on the target device VCRControl 
      _convertctrl.TargetVCRControl.Record()

      ' give the camera time to respond
      System.Threading.Thread.Sleep(2000)

      ' subscribe to the convert complete event
      AddHandler _convertctrl.Complete, AddressOf ConvertCtrl_Completed

      ' convert it now!
      _convertctrl.StartConvert()

      ' set the result to what we expect
      _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

Private Sub ConvertCtrl_Completed(ByVal sender As Object, ByVal e As EventArgs)
   ' stop the TargetDevice camera recording and rewind
   _convertctrl.TargetVCRControl.Stop()
   _convertctrl.TargetVCRControl.Rewind()
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 ConvertCtrl _convertctrl;
public void TargetDevicesExample()
{
   // reference the convert control
   _convertctrl = _form.ConvertCtrl;

   // input file
   string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.mpeg");

   try
   {
      // check to see if we have the desired target device
      if (_convertctrl.TargetDevices["Microsoft DV Camera and VCR"] == null)
         throw new Exception("No Microsoft DV Camera target devices available!");

      // set the video capture device, use your capture device name here
      _convertctrl.SourceFile = inFile;

      // select video and audio compressors to none
      _convertctrl.VideoCompressors.Uncompressed.Selected = true;
      _convertctrl.AudioCompressors.Uncompressed.Selected = true;

      // select the target format
      _convertctrl.TargetFormats[TargetFormatType.DVSD].Selected = true;

      // select only Audio for this example
      _convertctrl.AllowedStreams = StreamFormatType.AudioVideo;

      // set a target device
      _convertctrl.TargetDevices["Microsoft DV Camera and VCR"].Selected = true;

      // show the target format dialog
      if (_convertctrl.HasDialog(ConvertDlg.TargetFormat))
         _convertctrl.ShowDialog(ConvertDlg.TargetFormat, _form);

      // check the target device VCRControl 
      if (_convertctrl.TargetVCRControl == null
         || (_convertctrl.TargetVCRControl.DeviceType == VCRControlDeviceType.NotPresent
            || _convertctrl.TargetVCRControl.DeviceType == VCRControlDeviceType.Unknown))
         throw new Exception("MS DV Camera's Target VCR control is not present!");

      // start recording on the target device VCRControl 
      _convertctrl.TargetVCRControl.Record();

      // give the camera time to respond
      System.Threading.Thread.Sleep(2000);

      // subscribe to the convert complete event
      _convertctrl.Complete += new EventHandler(ConvertCtrl_Completed);

      // convert it now!
      _convertctrl.StartConvert();

      // set the result to what we expect
      _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();
}

void ConvertCtrl_Completed(object sender, EventArgs e)
{
   // stop the TargetDevice camera recording and rewind
   _convertctrl.TargetVCRControl.Stop();
   _convertctrl.TargetVCRControl.Rewind();
}

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

Requirements

Target Platforms

Reference

ConvertCtrl Class
ConvertCtrl Members