FLTK
System software
>
Fast Light Toolkit is a cross-platform widget library for graphical user interfaces, developed by Bill Spitzak and others. Made to accommodate 3D graphics programming, it has an interface to OpenGL, but it is also suitable for general GUI... Wikipedia
License: GNU Lesser General Public License
Initial release: 1998; 26 years ago
Preview release: experimental-2022-01 (January 23, 2022; 2 years ago)
Stable release: 1.3.9 (December 9, 2023; 4 months ago)
Written in: C++