Agar is a toolkit for graphical applications. Agar is integration-friendly, extensible, highly portable, and can use different graphics APIs such as SDL and OpenGL. Agar consists of two libraries: Agar-Core provides generic object functions and portability interfaces. Agar-GUI includes the base GUI system and a comprehensive set of standard widgets. Both are implemented in C, but are usable from other languages. When compiled with threads support, both libraries are efficiently thread-safe. The distribution also includes some more specialized libraries aimed at specific applications.
Agar is free software. Its source code is freely usable and re-usable by everyone under a BSD license, which allows use in commercial applications free of charge.
Runs on Windows, Mac OS X, Linux, FreeBSD and OpenBSD.
Download: Agar 1.3.2