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 Devices
Dim name As String
Dim value As Integer
 
value = instance.IndexOf(name)

public int IndexOf( 
   string name
)

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

public:
int IndexOf( 
   String^ name
)

Parameters

name: A value representing the name of the Device to find.

Return Value

The zero-based index position of the Device item found, or -1 if not found.

Returns the index of the first occurrence of a Device object whose name matches the given string.

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

   Try
      ' select a video device, use your device name here instead of Analog
      If capturectrl.VideoDevices("Analog") Is Nothing Then
         Throw New Exception("No Analog video tuner device available")
      End If

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

      ' reference the video devices object
      Dim devices As Devices = capturectrl.VideoDevices

      ' check the index of a USB video device
      Dim i As Integer = devices.IndexOf("USB")

      Dim dev As Device = Nothing
      If i > -1 Then
         ' access the input via the collection indexer
         dev = devices(i)
      End If

      ' check if the collection contains this input 
      ' (it should we just got it with IndexOf above)
      If devices.Contains(dev) 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()
{
   // reference the capture control
   CaptureCtrl capturectrl = _form.CaptureCtrl;

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

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

      // reference the video devices object
      Devices devices = capturectrl.VideoDevices;

      // check the index of a USB video device
      int i = devices.IndexOf("USB");

      Device dev = null;
      if (i > -1)
         // access the input via the collection indexer
         dev = devices[i];

      // check whether the collection contains this input 
      // (it should we just got it with IndexOf above)
      if (devices.Contains(dev))
      {
         // 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

Devices Class
Devices Members
Overload List