Process class?

[cheng_sh]

I'm learning on how to use the Process class. I create a form and during the form load, I'd like to open the notepad as well. See my code below.

 

My problem is: After open the notepad, is it possible to get the handle of the notepad through process.Handle property?

 

I try the code as below but error occur as it come to

hwnd = myproc.Handle

 

Error :

An unhandled exception of type 'System.InvalidOperationException' occurred in system.dll

 

Additional information: No process is associated with this object.

 

 

Can anybody tell me how to get its handle?

 

 

Thank you.

 

 
 Inherits System.Windows.Forms.Form
 Dim WithEvents myproc As System.Diagnostics.Process
 Dim hwnd As IntPtr

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
   myproc = New System.Diagnostics.Process()
   ' Do not receive an event when the process exits.
   myproc.EnableRaisingEvents = True ' False
   ' Start Notepad, and assign it to the process component.    
   myproc.Start("Notepad.exe")

   ' This prevents the window from accepting a close before it has
   ' fully opened.
   'myproc.WaitForInputIdle()
   hwnd = myproc.Handle
 End Sub

Edited May 28, 2003 by divil

[AndreRyan]

hWnd s are for windows not applications. Does notepad actually start?

[Derek Stone]

Your code should read:

myproc = Process.Start("notepad")

As it stands now you have no application associated with your Process object.

[cheng_sh]

Thank you. I got it.