There are only a handful of screensavers for Mac OS, although this isn’t difficult.
This simple screensaver requires the IdleTime extension. It draws the QuickTime movie with the name Screensaver.mov.
Screensaver in REALbasic 5.5.5 (11.4 K, 4 pages).
Screensaver project (REALbasic 5.5.5) (StuffIt X, 3.4 K)
© 2017 Cliff Huylebroeck