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Count Property

Summary

Gets the number of items contained in the collection.

Syntax

C#
VB
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

C#
VB
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

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Leadtools.MediaFoundation Assembly