This program helps set up a projector or external screen. It was born out of the need for an extremely simple utility for setting up a projector for a presentation.
Behind the scenes, it is a wrapper around the Trinity KRandrSimpleApi class and the xrandr
utility.
There are two modes available: screen duplication and screen extension. Its main GUI consists from just three big buttons ;-)
Follow the instructions for building TDE apps with CMake.
If you are using Slackware, you can generate a SlackBuild with this script.