SetVideoWindowPos Method (CaptureCtrl)

C#
Visual Basic
Objective-C
Java
C++

public virtual void SetVideoWindowPos( 
   float left,
   float top,
   float width,
   float height
)

'Declaration

Public Overridable Sub SetVideoWindowPos( _
   ByVal left As Single, _
   ByVal top As Single, _
   ByVal width As Single, _
   ByVal height As Single _
)

'Usage

Dim instance As CaptureCtrl
Dim left As Single
Dim top As Single
Dim width As Single
Dim height As Single
 
instance.SetVideoWindowPos(left, top, width, height)

public:
virtual void SetVideoWindowPos( 
   float left,
   float top,
   float width,
   float height
)

Parameters

left: X-coordinate of the origin of the video window in pixels with respect to the screen.
top: Y-coordinate of the origin of the video window in pixels with respect to the screen.
width: Video window width in pixels
height: Video window height in pixels

Sets the position and size of the video window.

C#
Visual Basic
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 CaptureCtrlForm = New CaptureCtrlForm()
Public _capturectrl As CaptureCtrl
Public Sub SetVideoWindowPosExample()
   ' reference the capture control
   _capturectrl = _form.CaptureCtrl

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

   Try
      ' select a video capture device
      If _capturectrl.VideoDevices("USB") Is Nothing Then
         Throw New Exception("No USB video device available")
      End If

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

      ' set a video compressor for the capture file
      _capturectrl.VideoCompressors.Mpeg4.Selected = True

      ' set the preview on
      _capturectrl.Preview = True

      ' set start event handler
      AddHandler _capturectrl.Started, AddressOf CaptureCtrl_Started

      ' set the video window position
      _capturectrl.SetVideoWindowPos(10, 10, 50, 50)

      ' set the target output
      _capturectrl.TargetFile = outFile

      ' start the capture
      _capturectrl.StartCapture(CaptureMode.Video)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

Private Sub CaptureCtrl_Started(ByVal sender As Object, ByVal e As EventArgs)
   ' check the current position and set the result to what we expect
   _result = (_capturectrl.VideoWindowTop = 10 AndAlso _capturectrl.VideoWindowLeft = 10 _
              AndAlso _capturectrl.VideoWindowWidth = 50 _
              AndAlso _capturectrl.VideoWindowWidth = 50)

   ' stop the capture
   _capturectrl.StopCapture()
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media"
End Class

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

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public CaptureCtrl _capturectrl;
public void SetVideoWindowPosExample()
{
   // reference the capture control
   _capturectrl = _form.CaptureCtrl;

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

   try
   {
      // select a video capture device
      if (_capturectrl.VideoDevices["USB"] == null)
         throw new Exception("No USB video device available");

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

      // set a video compressor for the capture file
      _capturectrl.VideoCompressors.Mpeg4.Selected = true;

      // set the preview on
      _capturectrl.Preview = true;

      // set start event handler
      _capturectrl.Started += new EventHandler(CaptureCtrl_Started);

      // set the video window position
      _capturectrl.SetVideoWindowPos(10, 10, 50, 50);

      // set the target output
      _capturectrl.TargetFile = outFile;

      // start the capture
      _capturectrl.StartCapture(CaptureMode.Video);
   }
   catch (Exception)
   {
      _result = false;
   }
}

void CaptureCtrl_Started(object sender, EventArgs e)
{
   // check the current position and set the result to what we expect
   _result = (_capturectrl.VideoWindowTop == 10 && _capturectrl.VideoWindowLeft == 10
               && _capturectrl.VideoWindowWidth == 50 && _capturectrl.VideoWindowWidth == 50);

   // stop the capture
   _capturectrl.StopCapture();
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 19\Media";
}

Target Platforms

Reference

CaptureCtrl Class
CaptureCtrl Members