From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon,  4 Jul 1994 10:25:27 -0400
From: rob@plan9.research.att.com rob@plan9.research.att.com
Subject: No subject
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the file /dev/window is a bitmap of the current window.
the file /dev/screen is a bitmap of the whole screen.
these files are documented in bit(3) and 8½(4).
their format is documented in bitmap(6).

-rob