Delegates

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  18 years ago

  by Michael H

  Michael H

  Chicago, USA, United States

  Joined 19 years ago

  I'm having some trouble with a delegate in my program.
  

  
  it's defined as :
  

  
  delegate void MeProc(int HWND, uint MSG, uint WParam, int LParam);
  

  
  I've also tried:
  

  
  delegate void MeProc(ref Message m);
  

  
  I think the problem is either that or in the following code:
  

  Code:

  
  int h = FindWindow(null,textbox.Text);
  int Menu1 = GetSystemMenu(h, 0);
  AppendMenu(Menu1, 0, 666, "Hello from Michael");
  oldProc = GetWindowLong(h, -4);
  if(SetWindowLong(h, -4,new MeProc(proc1))==0) MessageBox.Show("Nope");

  
  something interesting though, if h is the HWND of the my program's
  window, I get a "Fatal execution engine error".  But if h is the HWND of a Internet Explorer window,
  the call fails and I see that MessageBox. This is supposed to insert a new window procedure for the window.
  

  
  I (strongly) think that I've done something wrong with the delegate.
  

  
  Does anyone have any ideas?
  

  
  thanks,
  - Mike

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