From: "julian^screenfashion (aka survivor)" Date: 2009-03-17T01:33:01+09:00 Subject: Re: Gosu "Name error" problem > What i don't understand, is why draw_quad works, andGosu::Graphics::draw_quad doesn't ? Basically, because there is no Graphics class at all in the Ruby version of Gosu, where all the methods from Graphics have been moved to the Window class. Also, draw_quad is a *method*; Gosu::Graphics::draw_quad() would be a call to a *class method* of Gosu::Graphics. So there's only Gosu::Window#draw_quad, and you'd call it on an instance of Window, or without any instance at all in the methods of your Window. Regards, Julian