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Item Property

Summary

Gets the CaptureSubType item at the specified index.

Syntax

C++/CLI

public CaptureSubType Item( 
   int index 
) { get; }

public: 
property CaptureSubType^ Item { 
   CaptureSubType^ get(int index); 
}

Parameters

index
The zero-based index of the item to get.

Property Value

The CaptureSubType item at the specified index.

Exceptions

Exception	Description
System.ArgumentOutOfRangeException	The 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 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

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(false); 
 
public void IndexContainsExample() 
{ 
   try 
   { 
      // reference the form capture control 
      CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
      // set a video device first, you should use your video device name here 
      if (capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // reference the video capture subtypes collection 
      CaptureSubTypes stypes = capturectrl.VideoCaptureSubTypes; 
 
      // check for YUY2 subtype 
      int i = stypes.IndexOf(Constants.MEDIASUBTYPE_YUY2); 
 
      // access the input via the collection indexer 
      CaptureSubType cs = stypes[i]; 
 
      // check if the collection contains this subtype  
      // (it should we just got it with IndexOf above!) 
      if (stypes.Contains(cs)) 
      { 
         // set the result to what we expect 
         _result = true; 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Requirements

Target Platforms

Reference

CaptureSubTypes Class

CaptureSubTypes Members

Overload List

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Help Version 23.0.2024.2.29

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies