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Count Property

Summary

Gets the number of items contained in the collection.

Syntax

C++/CLI

public int Count { get; }

public: 
property int Count { 
   int get(); 
}

Property Value

The number of items contained in the collection.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
public bool _result = false; 
 
public void CountExample() 
{ 
   try 
   { 
      // reference the form capture control and it's video inputs 
      CaptureCtrl capturectrl = _form.CaptureCtrl; 
      Devices devices = capturectrl.VideoDevices; 
 
      // get count before setting device 
      int n = devices.Count; 
 
      // 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; 
 
      // get count after setting device 
      int m = devices.Count; 
 
      // set out result to what we expect  
      _result = (m == n); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Requirements

Target Platforms

Reference

Devices Class

Devices Members

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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