In This Topic ▼

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; or 0 if the collection is empty.

Remarks

Gets the number of items contained in the collection.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
public bool _result = false; 
 
public void CountExample() 
{ 
   try 
   { 
      // reference the form capture control and its video formats 
      CaptureCtrl capturectrl = _form.CaptureCtrl; 
      VideoFormats formats = capturectrl.VideoCaptureFormats; 
 
      // get count before setting device 
      int n = formats.Count; 
 
      // set a video device first.  use your video device's 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 = formats.Count; 
 
      // set out result to what we expect  
      _result = (m != n); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Requirements

Target Platforms

Reference

VideoFormats Class

VideoFormats Members

Download our FREE evaluation

Help Version 22.0.2022.12.7

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies