Public Overridable Sub EditGraph() 

Dim instance As PlayCtrl
 
instance.EditGraph()

public virtual void EditGraph()

public:
virtual void EditGraph(); 

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

         ' input file name
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.mpeg")

         Try
            ' turn off auto start
            playctrl.AutoStart = False

            ' set the source and target files
            playctrl.SourceFile = inFile

            ' register the graph for GraphEdit 
            ' you should see a message box that says the graph is registered 
            ' once this message displays you can open GraphEdit and Connect to Remote Graph
            playctrl.EditGraph()

            ' play it!
            playctrl.Run()
         Catch e1 As Exception
            _result = False
         End Try

         ' we'll loop on the state and pump messages for this example.
         ' but you should not need to if running from a Windows Forms application.
         Do While playctrl.State = PlayState.Running
            Application.DoEvents()
         Loop

         ' set the result
         _result = True
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class

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

         // input file name
         string inFile = Path.Combine(LEAD_VARS.MediaDir,"PlayCtrl_Source.mpeg");

         try
         {
            // turn off auto start
            playctrl.AutoStart = false;

            // set the source and target files
            playctrl.SourceFile = inFile;

            // register the graph for GraphEdit 
            // you should see a message box that says the graph is registered 
            // once this message displays you can open GraphEdit and Connect to Remote Graph
            playctrl.EditGraph();

            // play it!
            playctrl.Run();
         }
         catch (Exception)
         {
            _result = false;
         }

         // we'll loop on the state and pump messages for this example.
         // but you should not need to if running from a Windows Forms application.
         while (playctrl.State == PlayState.Running)
            Application.DoEvents();

         // set the result
         _result = true;
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
}