Public Overridable Sub ToggleFullScreenMode() 

Dim instance As ConvertCtrl
 
instance.ToggleFullScreenMode()

public virtual void ToggleFullScreenMode()

public:
virtual void ToggleFullScreenMode(); 

Public _result As Boolean = False
      Public _exit As Boolean = False
      Public _form As ConvertCtrlForm = New ConvertCtrlForm()
      Public _convertctrl As ConvertCtrl
      Public Sub KeyPressesExample()
         ' reference the convert control
         _convertctrl = _form.ConvertCtrl

         ' input and output files
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_KeyPressesExample.avi")

         Try
            ' set the source file
            _convertctrl.SourceFile = inFile

            ' select the video and audio compressors
            _convertctrl.VideoCompressors.Mpeg4.Selected = True
            _convertctrl.AudioCompressors.AC3.Selected = True

            ' enable preview
            _convertctrl.Preview = True

            ' set the target output file
            _convertctrl.TargetFile = outFile

            ' subscribe to the key events
            AddHandler _convertctrl.KeyPress, AddressOf KeyPress_Helper

            ' convert it now!
            _convertctrl.StartConvert()
         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 _convertctrl.State = ConvertState.Running
            Application.DoEvents()
         Loop

         ' clean up event handlers
         RemoveHandler _convertctrl.KeyPress, AddressOf KeyPress_Helper
      End Sub

      Private Sub KeyPress_Helper(ByVal sender As Object, ByVal e As Leadtools.Multimedia.KeyPressEventArgs)
         Select Case e.keyAscii
            Case CShort("p")
               ' toggle preview mode
               _convertctrl.Preview = Not _convertctrl.Preview
            Case CShort("f")
               ' toggle full screen mode
               _convertctrl.ToggleFullScreenMode()
            Case CShort("s")
               ' stop the conversion
               _convertctrl.StopConvert()
         End Select

         ' set 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 bool _exit = false;
      public ConvertCtrlForm _form = new ConvertCtrlForm();
      public ConvertCtrl _convertctrl;
      public void KeyPressesExample()
      {
         // reference the convert control
         _convertctrl = _form.ConvertCtrl;

         // input and output files
         string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.avi");
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_KeyPressesExample.avi");

         try
         {
            // set the source file
            _convertctrl.SourceFile = inFile;

            // select the video and audio compressors
            _convertctrl.VideoCompressors.Mpeg4.Selected = true;
            _convertctrl.AudioCompressors.AC3.Selected = true;

            // enable preview
            _convertctrl.Preview = true;

            // set the target output file
            _convertctrl.TargetFile = outFile;

            // subscribe to the key events
            _convertctrl.KeyPress += KeyPress_Helper;

            // convert it now!
            _convertctrl.StartConvert();
         }
         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 (_convertctrl.State == ConvertState.Running)
            Application.DoEvents();

         // clean up event handlers
         _convertctrl.KeyPress -= KeyPress_Helper;
      }

      void KeyPress_Helper(object sender, Leadtools.Multimedia.KeyPressEventArgs e)
      {
         switch ((char)e.keyAscii)
         {
            case 'p':
               // toggle preview mode
               _convertctrl.Preview = !_convertctrl.Preview;
               break;
            case 'f':
               // toggle full screen mode
               _convertctrl.ToggleFullScreenMode();
               break;
            case 's':
               // stop the conversion
               _convertctrl.StopConvert();
               break;
         }

         // set result
         _result = true;
      }

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