LEADTOOLS Multimedia (Leadtools.Multimedia assembly)
LEAD Technologies, Inc

VideoWindowSizeMode Property (CaptureCtrl)

Example 





Gets or sets the size mode for the current video window.
Syntax
public virtual SizeMode VideoWindowSizeMode {get; set;}
'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;}
 get_VideoWindowSizeMode();
set_VideoWindowSizeMode(value);
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 CodeCopy Code  
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 175\Media";
End Class
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 175\Media";
}
Requirements

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

See Also

Reference

CaptureCtrl Class
CaptureCtrl Members

 

 


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