GetSubObject Method (ConvertCtrl)

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

public virtual object GetSubObject( 
   ConvertObject objType
)

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

'Usage
 
Dim instance As ConvertCtrl
Dim objType As ConvertObject
Dim value As Object
 
value = instance.GetSubObject(objType)

public virtual object GetSubObject( 
   ConvertObject objType
)

 function Leadtools.Multimedia.ConvertCtrl.GetSubObject( 
   objType 
)

public:
virtual Object^ GetSubObject( 
   ConvertObject objType
)

Parameters

objType: Value that specifies which graph sub-object to get. Must be one of the ConvertObject enumeration values.

Return Value

ConvertObject

Gets the specified graph sub-object (including a filter being cached) from the convert graph. 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 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 175\Media";
End Class

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 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

ConvertCtrl Class
ConvertCtrl Members