self.menubar.
do_about method for
more elaborate about messages.
self is raised.
The event loop is split into many small parts, each of which can be overridden. The default methods take care of dispatching events to windows and dialogs, handling drags and resizes, Apple Events, events for non-FrameWork windows, etc.
Window object, which overrides the
application-wide handler if the window is frontmost.
DialogWindow object involved). Override if you
need special handling of dialog events (keyboard shortcuts, etc).