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Item Property

Summary

Gets or sets the Processor item with the specified name.

Syntax

C#
VB
C++
public Processor Item( 
   string name 
) { get; set; } 
Public Overloads Property Item( _ 
   ByVal name As String _ 
) As Leadtools.Mediafoundation.Processor 

Parameters

name
The string name of the item to get or set.

Property Value

The Processor item with the specified name.

Exceptions

ExceptionDescription
System.ArgumentOutOfRangeExceptionThe exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method.
System.NullReferenceExceptionThe exception that is thrown when there is an attempt to dereference a null object reference.
Remarks

This property provides the ability to access a specific item in the collection by using the following syntax: myCollection[index] The C# language uses the this keyword to define the indexers instead of implementing the Item property. VB implements Item as a default property, which provides the same indexing functionality.

Example

C#
VB
using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void IndexOfExample() 
{ 
   // reference the play control 
   PlayCtrl playctrl = _form.PlayCtrl; 
 
   try 
   { 
      // get the play controls available audio processors 
      AudioProcessors allProcs = playctrl.AudioProcessors; 
 
      // get the play controls selected audio processors 
      AudioProcessors selProcs = playctrl.SelectedAudioProcessors; 
 
      // get index of LEAD MF Volume Transform 
      int nIndex = allProcs.IndexOf("{E2B7DC41-38C5-11D5-91F6-00104BDB8FF9}"); 
 
      // get LEAD MF Volume Transform 
      Processor AudProc = allProcs[nIndex]; 
 
      // add the LEAD MF Volume Transform to the selected audio processors 
      selProcs.Add(AudProc); 
 
      // get the index of added audio processor 
      int i = selProcs.IndexOf(AudProc); 
 
      // set the result to what we expect 
      _result = (selProcs[i] == AudProc); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
Imports Leadtools 
Imports Leadtools.MediaFoundation 
Imports LeadtoolsMediaFoundationExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As PlayCtrlForm = New PlayCtrlForm() 
 
Public Sub IndexOfExample() 
   ' reference the play control 
   Dim playctrl As PlayCtrl = _form.PlayCtrl 
 
   Try 
      ' get the play controls available audio processors 
      Dim allProcs As AudioProcessors = playctrl.AudioProcessors 
 
      ' get the play controls selected audio processors 
      Dim selProcs As AudioProcessors = playctrl.SelectedAudioProcessors 
 
      ' get index of LEAD MF Volume Transform 
      Dim nIndex As Integer = allProcs.IndexOf("{E2B7DC41-38C5-11D5-91F6-00104BDB8FF9}") 
 
      ' get LEAD MF Volume Transform 
      Dim AudProc As Processor = allProcs(nIndex) 
 
      ' add the LEAD MF Volume Transform to the selected audio processors 
      selProcs.Add(allProcs(nIndex)) 
 
      ' get the index of added audio processor 
      Dim i As Integer = selProcs.IndexOf(allProcs(nIndex)) 
 
      ' set the result to what we expect 
      _result = (selProcs(i) Is AudProc) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub 

Requirements

Target Platforms

Help Version 19.0.2017.10.19
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Leadtools.MediaFoundation Assembly