ToggleClosedCaptioning Method (PlayCtrl)

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual void ToggleClosedCaptioning()

'Declaration
 
Public Overridable Sub ToggleClosedCaptioning()

'Usage
 
Dim instance As PlayCtrl
 
instance.ToggleClosedCaptioning()

public virtual void ToggleClosedCaptioning()

 function Leadtools.Multimedia.PlayCtrl.ToggleClosedCaptioning()

public:
virtual void ToggleClosedCaptioning();

Use this method to turn closed captioning on and off. If the method fails, an error is raised.

For more information, refer to the Error Codes.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public _result As Boolean = False
      Public _form As PlayCtrlForm = New PlayCtrlForm()
      Public _playctrl As PlayCtrl
      Public Sub ClosedCaptioningExample()
         ' reference the capture control
         _playctrl = _form.PlayCtrl

         ' input file names
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "VIDEO_TS.IFO")

         Try
            ' turn off auto start
            _playctrl.AutoStart = False

            ' use DVD source
            _playctrl.UseDVDSource = True

            ' set the allowed stream types
            _playctrl.AllowedStreams = StreamFormatType.AudioVideoCC

            ' set the source file
            _playctrl.SourceFile = inFile

            ' check if closed captioning is enabled
            If _playctrl.ClosedCaptioning = False Then
               ' try to toggle closed captioning 
               _playctrl.ToggleClosedCaptioning()
            End If

            ' if closed captioning is available
            If _playctrl.ClosedCaptioning Then
               ' set the result
               _result = True
            End If

            ' start the playback
            _playctrl.Run()

            ' 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
         Catch e1 As Exception
            _result = False
         End Try
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
End Class

public bool _result = false;
      public PlayCtrlForm _form = new PlayCtrlForm();
      public PlayCtrl _playctrl;
      public void ClosedCaptioningExample()
      {
         // reference the capture control
         _playctrl = _form.PlayCtrl;

         // input file names
         string inFile =Path.Combine(LEAD_VARS.MediaDir,"VIDEO_TS.IFO");

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

            // use DVD source
            _playctrl.UseDVDSource = true;

            // set the allowed stream types
            _playctrl.AllowedStreams = StreamFormatType.AudioVideoCC;

            // set the source file
            _playctrl.SourceFile = inFile;

            // check whether closed captioning is enabled
            if (_playctrl.ClosedCaptioning == false)
            {
               // try to toggle closed captioning 
               _playctrl.ToggleClosedCaptioning();
            }

            // if closed captioning is available
            if (_playctrl.ClosedCaptioning)
            {
               // set the result
               _result = true;
            }

            // start the playback
            _playctrl.Run();

            // 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();
         }
         catch (Exception)
         {
            _result = false;
         }
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

PlayCtrl Class
PlayCtrl Members