font usage / selection in text fields

Let me start by saying php-gtk is just awseom, I have always wanted to build gui apps, but havent had the ambition to learn a "real" programming language :) I have of course never used gtk before, and its all a bit new to me. The problem is that i do not know how to use the font selection and atrributes classes, which are needed to work with text widgets. I have an example of how to use them in a "normal" gtk app, but cannot make it work with php-gtk (i was able to figure out how to use the text widget itself though :) the example i am looking at is at http://www.gtk.org/tutorial/sec-agtktextexample.html I have tried various combinations of commands (from 'get_declared_classes()' I have determined that i should be using these) $cmap = &new gdkcolormap(); results in a "Class gdkcolormap cannot be constructed directly" same for $fixed_font = &new gdkfont("-misc-fixed-medium-r-*-*-*-140-*-*-*-*-*-*"); both of these (and some other stuff apperently) are needed by $text->insert() ($text being $text = &new GtkText();) Any help would be appreciated. Thanks, Jason