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IndexOf(CaptureSubType) Method

Summary

Returns the index of the first occurrence of a CaptureSubType object.

Syntax

C++/CLI

public int IndexOf( 
   CaptureSubType item 
)

public: 
int IndexOf(  
   CaptureSubType^ item 
)

Parameters

item
A CaptureSubType object reference of the item to find.

Return Value

The zero-based index position of the CaptureSubType item found. If the item is not found it will return -1.

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

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