SetVideoWindowPos Method (CaptureCtrl)

Visual Basic
C#
C++/CLI

'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
)

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.

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 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 18\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 18\Media";
}

Target Platforms

Reference

CaptureCtrl Class
CaptureCtrl Members