A library written in Objective-C for linux or others gcc-enabled systems that brings support of slots and signals ŕ-la Qt in the language, and a windowing toolkit made in OpenGL or X11. Other useful tools may also be included such as XML.
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.