TargetDevices Property (ConvertCtrl)

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

public virtual TargetDevices TargetDevices {get;}

'Declaration
 
Public Overridable ReadOnly Property TargetDevices As TargetDevices

'Usage
 
Dim instance As ConvertCtrl
Dim value As TargetDevices
 
value = instance.TargetDevices

public virtual TargetDevices TargetDevices {get;}

 get_TargetDevices();

public:
virtual property TargetDevices^ TargetDevices {
   TargetDevices^ get();
}

Property Value

A TargetDevices collection object.

The TargetDevices object is used to enumerate and select conversion output devices.

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

Copy Code

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 175\Media";
End Class

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 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