Count Property (CaptureInputs)

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property Count As Integer

'Usage
 
Dim instance As CaptureInputs
Dim value As Integer
 
value = instance.Count

public int Count {get;}

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

Property Value

0	No capture inputs.
>0	The number of capture input items in the collection.

If the count is zero then the selected capture device does not support multiple inputs, and no other property or method of the CaptureInputs object should be used.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public _result As Boolean = False
Public Sub CountResetExample()
   Try
      ' reference the form capture control and it's video inputs
      Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
      Dim inputs As CaptureInputs = capturectrl.VideoInputs

      ' get count before setting device
      Dim n As Integer = inputs.Count

      ' set a video device first, you should use your video device name here
      If capturectrl.VideoDevices("Analog") Is Nothing Then
         Throw New Exception("No Analog video tuner device available")
      End If

      capturectrl.VideoDevices("Analog").Selected = True

      ' get count after setting device
      Dim m As Integer = inputs.Count

      ' reset the collection
      inputs.Reset()

      ' set out result to what we expect 
      _result = (m <> n)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public CaptureCtrlForm _form = new CaptureCtrlForm();
public bool _result = false;
public void CountResetExample()
{
   try
   {
      // reference the form capture control and it's video inputs
      CaptureCtrl capturectrl = _form.CaptureCtrl;
      CaptureInputs inputs = capturectrl.VideoInputs;

      // get count before setting device
      int n = inputs.Count;

      // set a video device first, you should use your video device name here
      if (capturectrl.VideoDevices["Analog"] == null)
         throw new Exception("No Analog video tuner device available");

      capturectrl.VideoDevices["Analog"].Selected = true;

      // get count after setting device
      int m = inputs.Count;

      // reset the collection
      inputs.Reset();

      // set out result to what we expect 
      _result = (m != n);
   }
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms

Reference

CaptureInputs Class
CaptureInputs Members