I wrote a widget library for X using "object oriented" C. It implements single inheritance using preprocessor tricks: https://github.com/jhallen/joes-sandbox/t

I wrote a widget library for X using "object oriented" C. It implements single inheritance using preprocessor tricks: https://github.com/jhallen/joes-sandbox/tree/master/x/notif https://github.com/jhallen/joes-sandbox/tree/master/x/notif