smooth is an object oriented class library for Win32 and Linux written in C++. It's meant to become an alternative to toolkits like Qt.
ferite is a modern, lighweight, portable, threadsafe scripting engine with a language that is very easy to pick up and leverage for any task. It\'s been designed for rapid deployment in other programs as well as stand alone use.
A fast, unobtrusive and modern cross-platform GUI toolkit. Agar fully exploits hardware acceleration where available, but also supports simple frame-buffer interfaces. Agar is stand-alone and easily portable to new platforms and graphics systems.