adding unicode fonts support to grx

Well, I need to add asian character to my application and as I'm doing that I started thinking about adding unicode support to GRX. Althought I could simply pick and place "bitmaps" of asian characters, that wouldn't be flexible so... how can I add unicode support to GRX? What do I need to change, where do I need to change them etc... I'm starting to read somethings about it and hopefully (sic) it wouldn't be that much work... Anyone care to join? I need some guidance to start! André Moreira