IndexOf(String) Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public int IndexOf( 
   string name
)

'Declaration
 
Public Overloads Function IndexOf( _
   ByVal name As String _
) As Integer

'Usage
 
Dim instance As CaptureSubTypes
Dim name As String
Dim value As Integer
 
value = instance.IndexOf(name)

public int IndexOf( 
   string name
)

 function Leadtools.Multimedia.CaptureSubTypes.IndexOf(String)( 
   name 
)

public:
int IndexOf( 
   String^ name
)

Parameters

name: The CaptureSubType name to locate in the collection.

Return Value

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

This method searches the underlying item collection to locate the item name specified.

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

Copy 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("Analog") Is Nothing Then
         Throw New Exception("No Analog video device available")
      End If

      capturectrl.VideoDevices("Analog").Selected = True

      ' reference the video capture subtypes collection
      Dim stypes As CaptureSubTypes = capturectrl.VideoCaptureSubTypes

      ' check for RGB24 subtype
      Dim i As Integer = stypes.IndexOf(Leadtools.Multimedia.Constants.MEDIASUBTYPE_YUY2)

      ' access the input via the collection indexer
      Dim cs As CaptureSubType = stypes(i)

      ' check if the collection contains this subtype 
      ' (it should we just got it with IndexOf above!)
      If stypes.Contains(cs) Then
         ' set the result to what we expect
         _result = True
      End If
   Catch e1 As Exception
      _result = False
   End Try
End Sub

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.  use your video device's name here
      if (capturectrl.VideoDevices["Analog"] == null)
         throw new Exception("No Analog video device available");

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

      // reference the video capture subtypes collection
      CaptureSubTypes stypes = capturectrl.VideoCaptureSubTypes;

      // check for RGB24 subtype
      int i = stypes.IndexOf(Constants.MEDIASUBTYPE_YUY2);

      // access the input via the collection indexer
      CaptureSubType cs = stypes[i];

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

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

Reference

CaptureSubTypes Class
CaptureSubTypes Members
Overload List