I am a fan of OpenGL based GUIs. I built my first one before Y2k. There's something nice about crafting UI widgets, with all their behaviors that scratches a pa

I am a fan of OpenGL based GUIs. I built my first one before Y2k. There's something nice about crafting UI widgets, with all their behaviors that scratches a particular itch I can't explain. That said, it is really really tough to get all the little behaviors that people rely on. Including all keyboard shortcuts (across all platforms), double/triple clicking words, etc. I guess that this may not matter that much for specialized software (but please focus on the damn textboxes, they are hard to get right). I'm just commenting in case other people decide to follow the same path. Also, for a broader audience: be mindful of accessibility. Usually, this kind of thing doesn't work with screen readers.