FLTK is a cross-platform user interface library written in C++. FLTK runs on UNIX, GNU/Linux, Windows, and Mac OS X. FLTK is designed to be small and modular. It's clean and easy to use. This article will introduce you to FLTK by creating a simple Hello World style program.
FLTK is straight forward to build, but I'll include instructions for building the toolkit. The build process and program have been tested on Mac OS X 10.5.2.
This introduction is based on the first example provided with the FLTK documentation, it was written to be easier to follow for beginners.
