signals of a GtkWindow

[Ludovic Larue <ludovic larue1 mageos com>]

Hello.                                                                
Can someone tell me what signals are emitted when i click on the      
'kill' button that is in the titlebar of a toplevel window ?          
I would like to have a popup window raised when i click on this       
button, that window would ask me the classical "save", with three     
buttons 'Yes', 'No' and 'cancel'.                                     
I currently use the destroy signal (as in the simple examples in the  
tutorial), but the main window disappears before the popup window is  
shown. I read in the reference that user defined callbacks are always 
called after default callbacks.                                       
Is there a solution ?                                                 
                                                                      
I have another question, about the "full screen" button. What signal  
does it emit ? Because I would like my window to be full screen when  
it opens.                                                             
                                                                      
Thanks in advance for your answers.                                   
                                                                      
Ludo