LEADTOOLS Multimedia (Leadtools.Multimedia assembly)

Reset Method (AudioInputs)

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Example 



Sets the enumerator to its initial position, which is before the first element in the collection.
Syntax
'Declaration
 
Public Sub Reset() 
'Usage
 
Dim instance As AudioInputs
 
instance.Reset()
public void Reset()
public:
void Reset(); 
Remarks
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 continue to reset the position to -1.
Example
Copy Code  
Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

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
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

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;
   }
}
Requirements

Target Platforms

See Also

Reference

AudioInputs Class
AudioInputs Members

 

 


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Leadtools.Multimedia requires a Multimedia or Multimedia Suite license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features