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- To: INFO-LISPM at MIT-AI
- From: rms at MIT-AI (Richard M. Stallman)
- Date: Tue ,3 Jul 79 22:09:00 EDT
- Sent-by: RG at MIT-AI
:expose, :select, :deexpose and :deselect operations on windows,
as well as a few others, now require that the screen layout be
locked. This change is so that the window system can survive
together with interrupts. To lock the layout, put a call to
the macro LOCK-SCREEN-LAYOUT around the code. Nobody else can
change the exposed or selected windows while the layout is locked.