Count Property (AudioInputs)

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public int Count {get;}

'Declaration
 
Public ReadOnly Property Count As Integer

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

public int Count {get;}

 get_Count();

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

Property Value

The number of items contained in the collection.

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

Copy Code

Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public Sub CountResetExample()
   Try
      ' reference the form capture control
      Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

      ' set an audio device first, you should use your audio device name here
      If capturectrl.AudioDevices("USB") Is Nothing Then
         Throw New Exception("No USB audio device available")
      End If

      capturectrl.AudioDevices("USB").Selected = True

      ' reference the form capture control's audio inputs
      Dim inputs As AudioInputs = capturectrl.AudioInputs

      ' get count of inputs
      Dim cnt As Integer = inputs.Count

      ' get the current audio input before enumeration loop
      Dim before As AudioInput = TryCast(inputs.Current, AudioInput)

      ' enumerate them and break on master volume
      For Each ai As AudioInput In inputs
         If ai.Name = "Master Volume" Then
            Exit For
         End If
      Next ai

      ' get the current audio input now
      Dim now As AudioInput = TryCast(inputs.Current, AudioInput)

      ' if they are different reset the collection
      If Not now Is before Then
         inputs.Reset()
      End If

      ' set the result to what we expect
      _result = (inputs.Current Is before)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CountResetExample()
{
   try
   {
      // reference the form capture control
      CaptureCtrl capturectrl = _form.CaptureCtrl;

      // set an audio device first.  use your audio device's name here
      if (capturectrl.AudioDevices["USB"] == null)
         throw new Exception("No USB audio device available");

      capturectrl.AudioDevices["USB"].Selected = true;

      // reference the form capture control's audio inputs
      AudioInputs inputs = capturectrl.AudioInputs;

      // get count of inputs
      int cnt = inputs.Count;

      // get the current audio input before enumeration loop
      AudioInput before = inputs.Current as AudioInput;

      // enumerate them and break on master volume
      foreach (AudioInput ai in inputs)
      {
         if (ai.Name == "Master Volume")
            break;
      }

      // get the current audio input now
      AudioInput now = inputs.Current as AudioInput;

      // if they are different reset the collection
      if (now != before)
         inputs.Reset();

      // set the result to what we expect
      _result = (inputs.Current == before);
   }
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AudioInputs Class
AudioInputs Members