VideoCaptureSizes Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable ReadOnly Property VideoCaptureSizes As CaptureSizes

'Usage
 
Dim instance As CaptureCtrl
Dim value As CaptureSizes
 
value = instance.VideoCaptureSizes

public virtual CaptureSizes VideoCaptureSizes {get;}

public:
virtual property CaptureSizes^ VideoCaptureSizes {
   CaptureSizes^ get();
}

Property Value

A CaptureSizes collection containing video capture sizes.

The CaptureSizes object used to enumerate and select CaptureSize objects that contain common video capture sizes.

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

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub CaptureSizesExample()
   ' reference the capture control
   Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

   Try
      ' select a USB video device, use 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

      ' reference the capture size collection
      Dim sizes As CaptureSizes = capturectrl.VideoCaptureSizes

      ' get the current selection
      Dim n As Integer = sizes.Selection

      ' loop through all the capture sizes
      For Each cs As CaptureSize In sizes
         ' check some criteria and select one
         If cs.Width = 640 AndAlso cs.Height = 480 Then
            ' select it and break
            cs.Selected = True
            Exit For
         End If
      Next cs

      ' set the result to what we expect
      _result = (n <> sizes.Selection)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CaptureSizesExample()
{
   // reference the capture control
   CaptureCtrl capturectrl = _form.CaptureCtrl;

   try
   {
      // select a USB video device, use your device name here
      if (capturectrl.VideoDevices["USB"] == null)
         throw new Exception("No USB video device available");

      capturectrl.VideoDevices["USB"].Selected = true;

      // reference the capture size collection
      CaptureSizes sizes = capturectrl.VideoCaptureSizes;

      // get the current selection
      int n = sizes.Selection;

      // loop through all the capture sizes
      foreach (CaptureSize cs in sizes)
      {
         // check some criteria and select one
         if (cs.Width == 640 && cs.Height == 480)
         {
            // select it and break
            cs.Selected = true;
            break;
         }
      }

      // set the result to what we expect
      _result = (n != sizes.Selection);
   }
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms

Reference

CaptureCtrl Class
CaptureCtrl Members