Connecting to Configure signal event

[a <vis 314 15 gmail com>]

Hi,

I'm trying to connect to the configure signal 
event(signal_configure_event()), in the documentation I read that you 
have to enable Gdk::STRUCTURE_MASK, and I think that is the problem I am 
having. I tried do it several different ways, like this:

this->add_events(Gdk::STRUCTURE_MASK);
Gtk::Window::add_events(Gdk::STRUCTURE_MASK);
MainWindow::add_events(Gdk::STRUCTURE_MASK); //I think they are all 
synonyms, but just in case they weren't

and I tried using set_events() function too. Is this the correct way to 
enable STRUCTURE_MASK?

Thank you.

Tim O.