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From: jacs4440@oswego.UUCP (Dan/Mark)
Newsgroups: net.micro.amiga
Subject: Making a screen invisible ( rephrased )
Message-ID: <781@oswego.UUCP>
Date: Tue, 21-Oct-86 13:23:48 EST
Article-I.D.: oswego.781
Posted: Tue Oct 21 13:23:48 1986
Date-Received: Sun, 26-Oct-86 02:14:22 EST
References: <776@oswego.UUCP> <93500054@convex>
Reply-To: jacs4440@oswego.UUCP (Mark Reichert)
Organization: State University of New York at Oswego
Lines: 28

In article <93500054@convex> danny@convex.UUCP writes:
>
>I think he's talking about clearing out the bits of the screen.
>
>I don't have my manuals here but isn't there a specific function just
>for the purpose?  C-A?
>
>Dan Wallach

 No, that really isn't what I was interested in. I guess that I probably
didn't express what I needed well enough. What I want is to be able to
do rendering to an INTERLACED screen in memory, with as little ( ideally
none ) effect on the display as possible. I don't like an interlaced
workbench, and this program could run for quite a few hours ( days even ).
What I had in mind, and I guess that I am dreaming is something such as :

	scr = OpenScreen(&ns); /* everything gets interlaced */
	win = OpenWindow(&nw);
	bit-twiddle, hand-wave, hocus-pocus, linked list kludge;
	[Remake/Rethink]Display(); /* because these look at everything ?? */

 and suddenly, the new screen goes away and my workbench un-interlaces. Now,
I can Move() and Draw() and all sorts of other neat stuff, and when the
picture is done, it will write the picture out to disk. I also may need a
sequence for closing this invisible screen.
 I Hope it's clearer this time.

				- mark