VideoWindowTop Property (CaptureCtrl)

public virtual float VideoWindowTop {get;}

public virtual float VideoWindowTop {get;}

 get_VideoWindowTop();

public:
virtual property float VideoWindowTop {
   float get();
}

'Declaration
 
Public Overridable ReadOnly Property VideoWindowTop As Single

'Usage
 
Dim instance As CaptureCtrl
Dim value As Single
 
value = instance.VideoWindowTop

Property Value

A value representing the top position of the video window.

The value is in the units specified by the ScaleMode property.

Visual Basic
C#

Copy Code

Public _result As Boolean = False
      Public _form As CaptureCtrlForm = New CaptureCtrlForm()
      Public _capturectrl As CaptureCtrl
      Public Sub VideoWindowTopExample()
         ' reference the capture control
         _capturectrl = _form.CaptureCtrl

         ' output file
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_VideoWindowTopExample.avi")

         ' video window top
         Dim Top As Single

         Try
            ' set the source video device, select using your device name here
            If _capturectrl.VideoDevices("USB") Is Nothing Then
               Throw New Exception("No USB video device available")
            End If

            _capturectrl.VideoDevices("USB").Selected = True

            ' select a video compressor
            _capturectrl.VideoCompressors.Mpeg4.Selected = True

            ' set the target output file
            _capturectrl.TargetFile = outFile

            If _capturectrl.IsModeAvailable(CaptureMode.Video) Then
               ' enable the preview
               _capturectrl.Preview = True

               ' get the video window top
               Top = _capturectrl.VideoWindowTop

               ' set the result to what we expect
               _result = (Top > 0)

            End If
         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 _capturectrl.State = CaptureState.Running
            Application.DoEvents()
         Loop
      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 CaptureCtrlForm _form = new CaptureCtrlForm();
      // capture control
      CaptureCtrl capturectrl;

      // output file
      string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_VideoWindowTopExample.avi");

      public void VideoWindowTopExample()
      {
         // reference the capture control
         capturectrl = _form.CaptureCtrl;

         // video window top
         Single Top = 0;

         try
         {
             // set the source video device. use your device's name here
            if (capturectrl.VideoDevices["USB"] == null)
            {
               throw new Exception("No USB video device available");
            }

            capturectrl.VideoDevices["USB"].Selected = true;

            // select a video compressor
            capturectrl.VideoCompressors.Mpeg4.Selected = true;

            // set the target output file
            capturectrl.TargetFile = outFile;

            if (capturectrl.IsModeAvailable(CaptureMode.Video))
            {
               // enable the preview
               capturectrl.Preview = true;

               // get the video window top
               Top = capturectrl.VideoWindowTop;

               // set the result to what we expect
               _result = (Top != 0);
            }
         }
         catch (COMException)
         {
            _result = false;
         }
         catch (Exception)
         {
            _result = false;
         }
      }

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

CaptureCtrl Class
CaptureCtrl Members
VideoWindowLeft Property
VideoWindowWidth Property
VideoWindowHeight Property