Public Sub Clear() 

Dim instance As Processors
 
instance.Clear()

public void Clear()

public:
void Clear(); 

Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public Sub ClearExample()
   ' reference the play control
   Dim playctrl As PlayCtrl = _form.PlayCtrl

   Try
      ' get the available video processors
      Dim allProcs As VideoProcessors = playctrl.VideoProcessors

      ' get the selected video processors
      Dim selprocs As VideoProcessors = playctrl.SelectedVideoProcessors

      ' add the Dizzy video processor to the selected video 
      ' processors collection
      selprocs.Add(allProcs.EFXDizzy)

      ' get the current count of selected processors
      Dim n As Integer = selprocs.Count

      ' clear the collection
      selprocs.Clear()

      ' get the count again
      Dim m As Integer = selprocs.Count

      ' set the result to what we expect
      _result = (n > m AndAlso m = 0)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public void ClearExample()
{
   // reference the play control
   PlayCtrl playctrl = _form.PlayCtrl;

   try
   {
      // get the available video processors
      VideoProcessors allProcs = playctrl.VideoProcessors;

      // get the selected video processors
      VideoProcessors selprocs = playctrl.SelectedVideoProcessors;

      // add the Dizzy video processor to the selected video 
      // processors collection
      selprocs.Add(allProcs.EFXDizzy);

      // get the current count of selected processors
      int n = selprocs.Count;

      // clear the collection
      selprocs.Clear();

      // get the count again
      int m = selprocs.Count;

      // set the result to what we expect
      _result = (n > m && m == 0);
   }
   catch (Exception)
   {
      _result = false;
   }
}