Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!sun-barr!newstop!sun!imagen!atari!apratt
From: apratt@atari.UUCP (Allan Pratt)
Newsgroups: comp.sys.atari.st
Subject: Re: switching res
Message-ID: <2805@atari.UUCP>
Date: 10 Jan 91 19:59:10 GMT
References: <278ba068.35a3@petunia.CalPoly.EDU>
Organization: Atari Corp., Sunnyvale CA
Lines: 17

sslee@polyslo.CalPoly.EDU (Steven Lee) writes:
>	char *ainit=(char *)a_init;  /* Line A call, $A000 */
>	Setscreen(-1L,-1L,0);
>	*((int *)(aline-692))=319;   /* Mouse X limit */
>	*((int *)(aline-690))=199;   /* Mouse Y limit */
>	*((int *)(aline-666))=16;    /* # of bitplanes */

Setscreen() fills in the line-A variable space with correct values for
the new resolution, so you don't have to do it yourself. This is the
right way to change rez, if you want to do that. Since you already know
you're going "behind AES's back" in doing this, I won't lecture you on
the implications.  As long as you Setscreen() back to the old rez
before you make any AES calls, this works.

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt