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IndexOf(Int32,Int32) Method
See Also 
Leadtools.Multimedia Namespace > CaptureSizes Class > IndexOf Method : IndexOf(Int32,Int32) Method



Width
Video width to find.
Height
Video height to find.
Width
Video width to find.
Height
Video height to find.
Gets the index of the size that matches the specified size.

Syntax

Visual Basic (Declaration) 
Overloads Public Function IndexOf( _
   ByVal Width As Integer, _
   ByVal Height As Integer _
) As Integer
Visual Basic (Usage)Copy Code
Dim instance As CaptureSizes
Dim Width As Integer
Dim Height As Integer
Dim value As Integer
 
value = instance.IndexOf(Width, Height)
C# 
public int IndexOf( 
   int Width,
   int Height
)
C++/CLI 
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.

Example

Visual BasicCopy Code
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
C#Copy Code
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;
   }
}

Remarks

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.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also