/src/wrappers/gtk/examples/multiple-hello/my_window.e

 1class MY_WINDOW
 2
 3inherit GTK_WINDOW redefine make, on_destroy end
 4
 5creation make
 6
 7feature 
 8	make is
 9		do
10			Precursor
11			enable_on_destroy
12			-- create destroy_callback.make; destroy_callback.connect (Current, agent on_destroy)
13		end
14
15feature -- callback
16	--	destroy_callback: DESTROY_CALLBACK
17	on_destroy is
18		local
19			windows: G_LIST[GTK_WINDOW]; wi: ITERATOR[GTK_WINDOW]
20			w: GTK_WINDOW; t: STRING
21		do
22			windows:=gtk.toplevels
23			check windows/=Void end
24			if windows.count>1 then 
25				print (windows.count.out+" windows: ")
26				from wi:=windows.get_new_iterator; wi.start until wi.is_off
27				loop
28					w:=wi.item
29					if w/=Void then 
30						t:=w.title
31						if t/=Void then print ("'"+t+"'")
32						else print ("No title") end
33					else
34						raise("Void window")
35					end
36					wi.next
37					if not wi.is_off then print (", ") end
38				end
39				print ("%N"+title+" is being closed.%N")
40			else
41				print ("%NLast window is being closed, we quit.%N")
42				gtk.quit
43			end
44		end
45end
46