Resource construction set

The resource construction set (GEM RCS) is a GUI builder for GEM applications. It was written by Digital Research.

RCS was widely used on the Atari ST, Atari STe, Atari TT, Atari MEGA ST, Atari MEGA STE and Atari Falcon platforms.

Example
Files of the Atari Development Kit

Resource file
runtime binary

C file
source

Header file
source