In This Topic ▼

Count Property

Summary

Gets the number of items contained in the collection.

Syntax

C++

public int Count { get; }

Public ReadOnly Property Count As Integer

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 bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void CountExample() 
{ 
   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["Logitech"] == null) 
         throw new Exception("No Logitech video device available"); 
 
      capturectrl.VideoDevices["Logitech"].Selected = true; 
 
      // reference the video capture subtype collection 
      CaptureSubTypes stypes = capturectrl.VideoCaptureSubTypes; 
 
      // get count of subtypes 
      int cnt = stypes.Count; 
 
      // set the result to what we expect 
      _result = (cnt > 0); 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Imports Leadtools 
Imports Leadtools.MediaFoundation 
Imports LeadtoolsMediaFoundationExamples.Fixtures 
 
Public _result As Boolean = False 
Public _form As CaptureCtrlForm = New CaptureCtrlForm() 
 
Public Sub CountExample() 
   Try 
      ' reference the form capture control 
      Dim capturectrl As CaptureCtrl = _form.CaptureCtrl 
 
      ' set a video device first, you should use your video device name here 
      If capturectrl.VideoDevices("Logitech") Is Nothing Then 
         Throw New Exception("No Logitech video device available") 
      End If 
 
      capturectrl.VideoDevices("Logitech").Selected = True 
 
      ' reference the video capture subtype collection 
      Dim stypes As CaptureSubTypes = capturectrl.VideoCaptureSubTypes 
 
      ' get count of subtypes 
      Dim cnt As Integer = stypes.Count 
 
      ' set the result to what we expect 
      _result = (cnt > 0) 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub

Requirements

Target Platforms

Reference

CaptureSubTypes Class

CaptureSubTypes Members

Download our FREE evaluation

Help Version 20.0.2020.4.2

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies