Item Property

Summary
Gets or sets the TargetFormat item at the specified index.
Syntax
C#
C++/CLI
public TargetFormat Item( 
   [TargetFormatType 
)(TargetFormatType.md) index] { get; set; } 

Parameters

index
The TargetFormatType enumeration type of the item to get or set.

Property Value

The TargetFormat item at the specified index.

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.
Remarks

This property allows access to a specific item in the collection by using the following syntax: myCollection[index], where index is the specified TargetFormatType enumeration type. 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#
using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void IndexContainsExample() 
{ 
   // reference the capture control 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   try 
   { 
      // set an audio device first.  use your audio device's name here 
      if (capturectrl.AudioDevices["USB"] == null) 
         throw new Exception("No USB audio device available"); 
 
      capturectrl.AudioDevices["USB"].Selected = true; 
 
      // reference the target formats object 
      TargetFormats formats = capturectrl.TargetFormats; 
 
      // check the index using a name string 
      int i = formats.IndexOf("WAVE"); 
 
      // or get a target format directly, using a TargetFormatType enum 
      TargetFormat mpeg1 = formats[TargetFormatType.MPEG1Audio]; 
 
      // access the format via the collection indexer 
      TargetFormat af = formats[i]; 
 
      // check whether the collection contains this format  
      // (it should we just got it with IndexOf above) 
      if (formats.Contains(af) && formats.Contains(mpeg1)) 
      { 
         // set the result to what we expect 
         _result = true; 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
Requirements

Target Platforms

Help Version 22.0.2022.12.7
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Leadtools.Multimedia Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.