GetSubObject Method (PlayCtrl)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Function GetSubObject( _
   ByVal objType As PlayObject _
) As Object

'Usage
 
Dim instance As PlayCtrl
Dim objType As PlayObject
Dim value As Object
 
value = instance.GetSubObject(objType)

public virtual object GetSubObject( 
   PlayObject objType
)

public:
virtual Object^ GetSubObject( 
   PlayObject objType
)

Parameters

objType: A PlayObject enumeration value that specifies which graph object to retrieve.

Return Value

An object representing the specified graph object.

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

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
Public Sub GetSubObjectExample()
   ' reference the convert control
   Dim convertctrl As 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_GetSubObjectExample.avi")

   Try
      ' set the input and output files
      convertctrl.SourceFile = inFile
      convertctrl.TargetFile = outFile

      ' set the audio and video compression
      convertctrl.VideoCompressors.Mpeg2.Selected = True
      convertctrl.AudioCompressors.AC3.Selected = True

      ' add the color adjustment processor
      convertctrl.SelectedVideoProcessors.Add(convertctrl.VideoProcessors.Color)

      ' access the processor directly
      Dim lmvc As LMVColor = TryCast(convertctrl.GetSubObject(ConvertObject.SelVideoProcessor), LMVColor)

      If Not lmvc Is Nothing Then
         ' change some settings
         lmvc.Brightness = 85
         lmvc.Contrast = 85
         lmvc.Enabled = True
         lmvc.EffectAreaEnabled = False

         Marshal.ReleaseComObject(lmvc)
      End If

      ' start the convert
      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
End Sub

Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media"
End Class

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

public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void GetSubObjectExample()
{
   // reference the convert control
   ConvertCtrl 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_GetSubObjectExample.avi");

   try
   {
      // set the input and output files
      convertctrl.SourceFile = inFile;
      convertctrl.TargetFile = outFile;

      // set the audio and video compression
      convertctrl.VideoCompressors.Mpeg2.Selected = true;
      convertctrl.AudioCompressors.AC3.Selected = true;

      // add the color adjustment processor
      convertctrl.SelectedVideoProcessors.Add(convertctrl.VideoProcessors.Color);

      // access the processor directly
      LMVColor lmvc = convertctrl.GetSubObject(ConvertObject.SelVideoProcessor) as LMVColor;

      if (lmvc != null)
      {
         // change some settings
         lmvc.Brightness = 85;
         lmvc.Contrast = 85;
         lmvc.Enabled = true;
         lmvc.EffectAreaEnabled = false;

         Marshal.ReleaseComObject(lmvc);
      }

      // start the convert
      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();
}

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}

Target Platforms

Reference

PlayCtrl Class
PlayCtrl Members