LEADTOOLS Multimedia (Leadtools.Multimedia assembly)

VideoWindowSizeMode Property (CaptureCtrl)

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Example 



Gets or sets the size mode for the current video window.
Syntax
'Declaration
 
Public Overridable Property VideoWindowSizeMode As SizeMode
'Usage
 
Dim instance As CaptureCtrl
Dim value As SizeMode
 
instance.VideoWindowSizeMode = value
 
value = instance.VideoWindowSizeMode
public virtual SizeMode VideoWindowSizeMode {get; set;}
public:
virtual property SizeMode VideoWindowSizeMode {
   SizeMode get();
   void set (    SizeMode value);
}

Property Value

A SizeMode value representing the video window size mode.
Remarks
The value must one of the SizeMode enumeration values. The default size mode is SizeMode.Fit.

Assignment can raise an error exception. For more information, refer to the Error Codes.

Example
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 VideoWindowSizeModeExample()
   ' reference the capture control
   _capturectrl = _form.CaptureCtrl

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

   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

         ' subscribe to the started event
         AddHandler _capturectrl.Started, AddressOf CaptureCtrl_Started

         ' set video window size mode
         _capturectrl.VideoWindowSizeMode = SizeMode.Fit

         ' start capture
         _capturectrl.StartCapture(CaptureMode.Video)

         ' get the scale mode
         Dim Mode As SizeMode = _capturectrl.VideoWindowSizeMode

         ' set the result to what we expect
         _result = (Mode = SizeMode.Fit)
      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

Private Sub CaptureCtrl_Started(ByVal sender As Object, ByVal e As EventArgs)
   ' stop the capture (we don't need a complete capture for this example)
   _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();
// capture control
CaptureCtrl capturectrl;

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

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

   try
   {
      // set the source video device, select using your device 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))
      {
         // subscribe to the started event
         capturectrl.Started += CaptureCtrl_Started;

         // set video window size mode
         capturectrl.VideoWindowSizeMode = SizeMode.Fit;

         // start capture
         capturectrl.StartCapture(CaptureMode.Video);

         // get the scale mode
         SizeMode Mode = capturectrl.VideoWindowSizeMode;

         // set the result to what we expect
         _result = (Mode == SizeMode.Fit);
      }
   }
   catch (COMException)
   {
      _result = false;
   }
   catch (Exception)
   {
      _result = false;
   }
}

void CaptureCtrl_Started(object sender, EventArgs e)
{
   // stop the capture (we do not need a complete capture for this example)
   capturectrl.StopCapture();
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}
Requirements

Target Platforms

See Also

Reference

CaptureCtrl Class
CaptureCtrl Members

 

 


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Leadtools.Multimedia requires a Multimedia or Multimedia Suite license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features