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From: SY.FDC@CU20B.COLUMBIA.EDU (Frank da Cruz)
Newsgroups: net.micro
Subject: Rainbow graphics
Message-ID: <47@brl-smoke.ARPA>
Date: Wed, 16-Apr-86 10:23:26 EST
Article-I.D.: brl-smok.47
Posted: Wed Apr 16 10:23:26 1986
Date-Received: Fri, 18-Apr-86 08:45:13 EST
Sender: news@brl-smoke.ARPA
Lines: 14

Has anyone ever succeeded in writing an assembler program for the DEC Rainbow
that senses whether the graphics option is installed, and then if it is, either
(a) allows changing of foreground/background text mode colors, and/or (b) draws
a line between two arbitrary points on the screen?  The Rainbow documentation
is obscure on these points, and the only software I've ever seen that allows
the user to take advantage of Rainbow graphics is GW Basic, and when you exit
the GW Basic environment, everything goes back to normal monochrome text.
Reportedly, there's also a Turbo Pascal Graphics package for the Rainbow.  My
interest, however, is simply to allow the SET TERMINAL COLOR command from the
forthcoming release of MS-DOS Kermit to work on the Rainbow, and possibly also
to include some simple Tektronix emulation.  Some small MS assembler sample
programs would be a real help.  Naturally, the results will be shared with the
world.
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