Reset Method (AudioFormats)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Sub Reset()

'Usage
 
Dim instance As AudioFormats
 
instance.Reset()

public void Reset()

public:
void Reset();

This enumerator remains valid through the life of the collection. If changes are made to the collection, such as adding, modifying, or deleting elements, the next call to the Reset method will reset the position to -1.

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 
      Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

      ' reference the audio formats
      Dim formats As AudioFormats = capturectrl.AudioCaptureFormats

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

      ' 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

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

      ' reset the collection
      formats.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 
      CaptureCtrl capturectrl = _form.CaptureCtrl;

      // reference the audio formats
      AudioFormats formats = capturectrl.AudioCaptureFormats;

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

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

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

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

      // reset the collection
      formats.Reset();

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

Target Platforms

Reference

AudioFormats Class
AudioFormats Members