EditGraph Method (ConvertCtrl)

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overridable Sub EditGraph()

'Usage
 
Dim instance As ConvertCtrl
 
instance.EditGraph()

public virtual void EditGraph()

public:
virtual void EditGraph();

Registers the current graph and runs the DirectShow GraphEdit utility. This method displays a modal dialog box indicating that the graph has been registered. The current thread is suspended during this time. The toolkit then attempts to invoke the GraphEdit utility from the DirectShow SDK. You can use GraphEdit's "Connect" menu option to view the registered graph. When finished, exit GraphEdit, and click the dialog's OK button to continue program execution.

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 EditGraphExample()
   ' reference the convert control
   Dim convertctrl As ConvertCtrl = _form.ConvertCtrl

   ' input and output file names
   Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.mpeg")
   Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_EditGraphExample.mpg")

   Try
      ' set the source and target files
      convertctrl.SourceFile = inFile
      convertctrl.TargetFile = outFile

      ' set the preview
      convertctrl.Preview = True

      ' set a video compressor
      convertctrl.VideoCompressors.Mpeg4.Selected = True

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

      ' run 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

   ' set the result
   _result = True
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 EditGraphExample()
{
   // reference the convert control
   ConvertCtrl convertctrl = _form.ConvertCtrl;

   // set the input and output file names
   string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.mpeg");
   string outFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_EditGraphExample.mpg");

   try
   {
      // set the source and target files
      convertctrl.SourceFile = inFile;
      convertctrl.TargetFile = outFile;

      // set the preview
      convertctrl.Preview = true;

      // set a video compressor
      convertctrl.VideoCompressors.Mpeg4.Selected = true;

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

      // run 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();

   // set the result
   _result = true;
}

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

Target Platforms

Reference

ConvertCtrl Class
ConvertCtrl Members