Path: utzoo!censor!geac!alias!jsmith
From: jsmith@alias.UUCP (Jeff Smith)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Double-Buffering in a window
Message-ID: <714@alias.UUCP>
Date: 11 Jan 90 14:45:12 GMT
References: <885@mindlink.UUCP> <1990Jan4.104416.15515@gdt.bath.ac.uk>
Reply-To: jsmith@alias.UUCP (Jeff Smith)
Organization: Alias Research Inc., Toronto, Canada
Lines: 18

I have only done simple double buffering on the Amiga, but I use a techniqwe
that, while it is a kludge, works well enough for my purposes. Having picked
up this thread 'already in progress' I'm not sure if this has been mentioned
or not. Disclaimers thus suitably behind us...

I usually open two, coincident windows and write to one, then the other.
The act of swapping buffers is just a matter of promoting the back window
to the front. You have to watch for WINDOWDRAG events and make sure that
if the user moves one window, the other moves with it, but those are trivial
niceties. 

I'm certain that there are other methods that will work much faster, but this
is a quick hack that I have put into a link module of my own. If and when a
better method comes my way, I'll probably switch.

Hope somebody can use this.

Smitty