1 from Tkinter import * 2 3 # This file shows how to trap the killing of a window 4 # when the user uses window manager menus (typ. upper left hand corner 5 # menu in the decoration border). 6 7 8 ### ******* this isn't really called -- read the comments 9 def my_delete_callback(): 10 print "whoops -- tried to delete me!" 11 12 class Test(Frame): 13 def deathHandler(self, event): 14 print self, "is now getting nuked. performing some save here...." 15 16 def createWidgets(self): 17 # a hello button 18 self.hi_there = Button(self, text='Hello') 19 self.hi_there.pack(side=LEFT) 20 21 def __init__(self, master=None): 22 Frame.__init__(self, master) 23 Pack.config(self) 24 self.createWidgets() 25 26 ### 27 ### PREVENT WM kills from happening 28 ### 29 30 # the docs would have you do this: 31 32 # self.master.protocol("WM_DELETE_WINDOW", my_delete_callback) 33 34 # unfortunately, some window managers will not send this request to a window. 35 # the "protocol" function seems incapable of trapping these "aggressive" window kills. 36 # this line of code catches everything, tho. The window is deleted, but you have a chance 37 # of cleaning up first. 38 self.bind_all("<Destroy>", self.deathHandler) 39 40 41 test = Test() 42 test.mainloop() 43
