IndexOf(Int32,Int32) Method

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overloads Function IndexOf( _
   ByVal Width As Integer, _
   ByVal Height As Integer _
) As Integer

'Usage
 
Dim instance As CaptureSizes
Dim Width As Integer
Dim Height As Integer
Dim value As Integer
 
value = instance.IndexOf(Width, Height)

public int IndexOf( 
   int Width,
   int Height
)

public:
int IndexOf( 
   int Width,
   int Height
)

Parameters

Width: Video width to find.
Height: Video height to find.

Return Value

The zero-based index of the found item; otherwise, -1 if no item found.

Gets the zero-based index of the size that matches the specified size.

If the method fails, an error is raised. For more information, refer to the Error Codes.

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 IndexContainsExample()
   Try
      ' reference the form capture control
      Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

      ' set a video device first, you should use your video 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 video capture sizes collection
      Dim sizes As CaptureSizes = capturectrl.VideoCaptureSizes

      ' check for 640x480
      Dim i As Integer = sizes.IndexOf(640, 480)

      ' access the input via the collection indexer
      Dim cs As CaptureSize = sizes(i)

      ' check if the collection contains this input 
      ' (it should we just got it with IndexOf above!)
      If sizes.Contains(cs) Then
         ' set the result to what we expect
         _result = True
      End If
   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 IndexContainsExample()
{
   try
   {
      // reference the form capture control
      CaptureCtrl capturectrl = _form.CaptureCtrl;

      // set a video device first, you should use your video device name here
      if (capturectrl.VideoDevices["USB"] == null)
         throw new Exception("No USB video device available");

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

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

      // check for 640x480
      int i = sizes.IndexOf(640, 480);

      // access the input via the collection indexer
      CaptureSize cs = sizes[i];

      // check if the collection contains this input 
      // (it should we just got it with IndexOf above!)
      if (sizes.Contains(cs))
      {
         // set the result to what we expect
         _result = true;
      }
   }
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms

Reference

CaptureSizes Class
CaptureSizes Members
Overload List