LEADTOOLS Multimedia (Leadtools.Multimedia assembly)
LEAD Technologies, Inc

IndexOf(String) Method

Example 





The name of the compressor item to locate in the collection.
Determines the index of a specific Compressor item in the collection.
Syntax
public int IndexOf( 
   string name
)
'Declaration
 
Public Overloads Function IndexOf( _
   ByVal name As String _
) As Integer
'Usage
 
Dim instance As Compressors
Dim name As String
Dim value As Integer
 
value = instance.IndexOf(name)
public int IndexOf( 
   string name
)
 function Leadtools.Multimedia.Compressors.IndexOf(String)( 
   name 
)
public:
int IndexOf( 
   String^ name
) 

Parameters

name
The name of the compressor item to locate in the collection.

Return Value

The zero-based index of the found item; otherwise -1 if no item found.
Remarks
This method searched the underlying item collection to locate the desired item.
Example
Copy CodeCopy 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 compressors object
      Dim compressors As Compressors = capturectrl.VideoCompressors

      ' check the index of a video compressor
      Dim i As Integer = compressors.IndexOf(capturectrl.VideoCompressors.Mpeg2)

      Dim cmp As Compressor = Nothing
      If i > -1 Then
         ' access the compressor via the collection indexer
         cmp = compressors(i)
      End If

      ' check if the collection contains this input 
      ' (it should we just got it with IndexOf above)
      If compressors.Contains(cmp) 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 compressors object
      Compressors compressors = capturectrl.VideoCompressors;

      // check the index of a video compressor
      int i = compressors.IndexOf(capturectrl.VideoCompressors.Mpeg2);

      Compressor cmp = null;
      if (i > -1)
         // access the compressor via the collection indexer
         cmp = compressors[i];

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

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

See Also

Reference

Compressors Class
Compressors Members
Overload List

 

 


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Leadtools.Multimedia requires a Multimedia or Multimedia Suite license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features