[glade--]Simple Hello User App

Hello, I'm trying to get the hang of glademm (haven't touched a piece of
code in 2+ years)http://writelinux.com/glade/index.php

Anyways, I found a nice little 'Hello User' tutorial for glade at this
url:

http://writelinux.com/glade/index.php

I'm using glademm since I'm a lot more familiar with C++. My question is
this, in this tutorial, to add functionality to the 'Close' button, you
add this code 'gtk_main_quit();'. Everything I've googled for suggests
that I should use 'Gtk::Main::quit();' as a replacement. This doesn't
work however, compiling gives me this error:

window1.cc: In member function `virtual void
window1::on_button2_clicked()':
window1.cc:13: error: incomplete type 'Gtk::Main' cannot be used to name
a scope


I'm looking for any help, suggestions, clues, tutorials, etc...

--Patrick