diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Demo/tkinter/matt/killing-window-w-wm.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/tkinter/matt/killing-window-w-wm.py Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,42 @@ +from Tkinter import * + +# This file shows how to trap the killing of a window +# when the user uses window manager menus (typ. upper left hand corner +# menu in the decoration border). + + +### ******* this isn't really called -- read the comments +def my_delete_callback(): + print "whoops -- tried to delete me!" + +class Test(Frame): + def deathHandler(self, event): + print self, "is now getting nuked. performing some save here...." + + def createWidgets(self): + # a hello button + self.hi_there = Button(self, text='Hello') + self.hi_there.pack(side=LEFT) + + def __init__(self, master=None): + Frame.__init__(self, master) + Pack.config(self) + self.createWidgets() + + ### + ### PREVENT WM kills from happening + ### + + # the docs would have you do this: + +# self.master.protocol("WM_DELETE_WINDOW", my_delete_callback) + + # unfortunately, some window managers will not send this request to a window. + # the "protocol" function seems incapable of trapping these "aggressive" window kills. + # this line of code catches everything, tho. The window is deleted, but you have a chance + # of cleaning up first. + self.bind_all("", self.deathHandler) + + +test = Test() +test.mainloop()