Contains Method

Summary
Determines whether a collection contains a specified CaptureInput item.
Syntax
C#
C++/CLI
public bool Contains( 
   CaptureInput item 
) 
public: 
bool Contains(  
   CaptureInput^ item 
)  

Parameters

item
The object to locate in the collection.

Return Value

true if the item was found in the collection; otherwise, it is false.

Example
C#
using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
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 inputs object 
      CaptureInputs inputs = capturectrl.VideoInputs; 
 
      // check the index of a video tuner 
      int i = inputs.IndexOf("Video Tuner"); 
 
      CaptureInput ci = null; 
      if (i > -1) 
         // access the input via the collection indexer 
         ci = inputs[i]; 
 
      // check if the collection contains this input  
      // (it should we just got it with IndexOf above) 
      if (inputs.Contains(ci)) 
      { 
         // 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.MediaFoundation Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.