LEADTOOLS Multimedia (Leadtools.Multimedia assembly)

VideoHeight Property (CaptureCtrl)

Show in webframe
Example 



Gets the current video height.
Syntax
'Declaration
 
Public Overridable ReadOnly Property VideoHeight As Single
'Usage
 
Dim instance As CaptureCtrl
Dim value As Single
 
value = instance.VideoHeight
public virtual float VideoHeight {get;}
public:
virtual property float VideoHeight {
   float get();
}

Property Value

A value representing the current video height.
Remarks
Gets the current video height. The value is in the units specified by the ScaleMode property. CaptureCtrl.VideoWidth
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 VideoHeightExample()
   ' reference the capture control
   _capturectrl = _form.CaptureCtrl

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

   ' video height
   Dim Height As Single = 0

   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
         ' enable the preview
         _capturectrl.Preview = True

         ' get the video height
         Height = _capturectrl.VideoHeight

         ' set the result to what we expect
         _result = (Height <> 0)
      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

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_VideoHeightExample.avi");

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

   // video height
   Single Height = 0;

   try
   {
       // set the source video device. use your device's 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))
      {
         // enable the preview
         capturectrl.Preview = true;

         // get the video height
         Height = capturectrl.VideoHeight;

         // set the result to what we expect
         _result = (Height != 0);
      }
   }
   catch (COMException)
   {
      _result = false;
   }
   catch (Exception)
   {
      _result = false;
   }
}

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

 

 


Products | Support | Contact Us | Copyright Notices
© 2006-2014 All Rights Reserved. LEAD Technologies, Inc.

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