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Path: utzoo!mnetor!seismo!mcvax!diku!olamb!kimcm
From: kimcm@olamb.UUCP (Kim Chr. Madsen)
Newsgroups: comp.sys.att,comp.terminals
Subject: Test for status of a pixel on DMD terminal.
Message-ID: <182@olamb.UUCP>
Date: Mon, 8-Dec-86 04:26:36 EST
Article-I.D.: olamb.182
Posted: Mon Dec  8 04:26:36 1986
Date-Received: Mon, 8-Dec-86 21:33:11 EST
Organization: AmbraSoft A/S (Denmark)
Lines: 22
Keywords: 5620, dmd, pixel
Xref: mnetor comp.sys.att:61 comp.terminals:78


Is there a way of telling whether a pixel is set or not, on the
the AT&T 5620 Terminal (aka DMD & Blit) ?

What I need is something like:

	int pixel(p)
	Point p;

Returning information on the status of the pixel (on/off), I know, I can
get the 32-bit word containing the pixel-bit - but calculating which bit's
the right isn't easy when you don't know the size of the layer running the
application.

BTW:

Is there something wrong with <blitio.h>, since when I include it - my
program won't run and I have to make do without the routines needing the
header file to be included - Making I/O to the UNIX host a pain in the a**!

				Best Regards
				Kim Chr. Madsen