Article View: comp.sys.amiga.tech
Article #9322Re: A dual playing fields question
From: Carolyn Scheppner CATS
Date: Tue, 19 Jul 1988 19:41
Date: Tue, 19 Jul 1988 19:41
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1352 bytes
In article <1034@ucsd.EDU> rich@net1.ucsd.edu (bmf) writes:
>
>
>How can I create a dual playing field with a custom window?
>Custom windows only point to one struct RastPort and you need two
>to create a dual playing field. I would greatly appreciate any help
>I can get on this.
I may be wrong, but I don't think you can have a dual-playfield WINDOW.
You can have a dualpf ViewPort. With some tricks, you can have a dualpf
Screen. But as far as I know you must render to the unclipped RastPorts
of your viewport or screen.
See Fish Disk 87 for Jim Mackraz's WbDualPF.c for an example of
retrofitting a screen as dualpf.
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cbmvax!carolyn From: carolyn@cbmvax.UUCP (Carolyn Scheppner CATS) Newsgroups: comp.sys.amiga.tech Subject: Re: A dual playing fields question Message-ID: <4289@cbmvax.UUCP> Date: 19 Jul 88 19:41:10 GMT References: <1034@ucsd.EDU> Reply-To: carolyn@cbmvax.UUCP (Carolyn Scheppner CATS) Organization: Commodore Technology, West Chester, PA Lines: 23