[Oberon] PO2013 - System.CloseTrack / System.ExtendDisplay

Skulski, Wojciech skulski at pas.rochester.edu
Wed Apr 24 22:40:53 CEST 2019


> Another way to arrive at a completely blank screen is by simply clicking on System.Close 
> in the title bar of every open viewer (for the system log viewer, just type System.Close 
> in it, place the star marker on the viewer, then click the cmd).

Been there. I do not remember which Oberon System it was. But I do remember that the way out was to type CTRL-C to display a trap viewer. In that viewer I could then type other commands to bring the system back to life. The precondition was to know which commands. Always keep  your Martin Reiser book handy!


More information about the Oberon mailing list