Sets the position and size of the video window.
Syntax
Visual Basic (Usage) | Copy Code |
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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) |
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
Example
Visual Basic | Copy Code |
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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 17\Media"
End Class |
C# | Copy Code |
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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 17\Media";
} |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also