It used to be a right of passage for indie gamedevs to implement ui frameworks for their games. There were a whole bunch of them on the Internet for SDL, allegr

It used to be a right of passage for indie gamedevs to implement ui frameworks for their games. There were a whole bunch of them on the Internet for SDL, allegro, OpenGL, etc... Conversely, most gui frameworks provide an OpenGL widget you can build an app around; qt, swing with jogl or lwjgl, etc. lots of options here.