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//usr/share/doc/pygobject2-2.20.0/examples/signal.py
import pygtk; pygtk.require("2.0") import gobject class C(gobject.GObject): __gsignals__ = { 'my_signal': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, (gobject.TYPE_INT,)) } def __init__(self): self.__gobject_init__() # default constructor using our new GType def do_my_signal(self, arg): print "C: class closure for `my_signal' called with argument", arg class D(C): def do_my_signal(self, arg): print "D: class closure for `my_signal' called. Chaining up to C" C.do_my_signal(self, arg) def my_signal_handler(object, arg, *extra): print "handler for `my_signal' called with argument", arg, \ "and extra args", extra inst = C() inst2 = D() inst.connect("my_signal", my_signal_handler, 1, 2, 3) inst.emit("my_signal", 42) inst2.emit("my_signal", 42)
