SetVideoWindowPos Method (CaptureCtrl)

Visual Basic
C#
WinRT C#
WinRT JavaScript
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
)

 function Leadtools.Multimedia.CaptureCtrl.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.

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

Copy Code

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 175\Media";
End Class

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 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