Registers the current graph and runs the DirectShow GraphEdit utility.
public virtual void EditGraph()
Public Overridable Sub EditGraph()
virtual void EditGraph();
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. Use GraphEdit's "Connect" menu option to view the registered graph. When finished, exit GraphEdit, and click on the dialog's OK button to continue program execution.
public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public void EditGraphExample()
// reference the convert control
PlayCtrl playctrl = _form.PlayCtrl;
// input file name
string inFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.mpeg");
// turn off auto start
playctrl.AutoStart = false;
// set the source and target files
playctrl.SourceFile = inFile;
// register the graph for GraphEdit
// you should see a message box that says the graph is registered
// once this message displays you can open GraphEdit and Connect to Remote Graph
// play it!
_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 (playctrl.State == PlayState.Running)
// set the result
_result = true;
static class LEAD_VARS
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media";
Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public Sub EditGraphExample()
' reference the convert control
Dim playctrl As PlayCtrl = _form.PlayCtrl
' input file name
Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.mpeg")
' turn off auto start
playctrl.AutoStart = False
' set the source and target files
playctrl.SourceFile = inFile
' register the graph for GraphEdit
' you should see a message box that says the graph is registered
' once this message displays you can open GraphEdit and Connect to Remote Graph
' play it!
Catch e1 As 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.
Do While playctrl.State = PlayState.Running
' set the result
_result = True
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media"
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