Minibuffers work, minimally. As the text I typed says, just char entry, deleting and ok/cancel. Delete autorepeat and left/right keys should work when those events are enabled. No cursor, although that could be implemented (probably as an asterisk or a | ?).
Technorati Tags: [free software](http://www.technorati.com/tag/free software), [generative art](http://www.technorati.com/tag/generative art), graphics, hacking