Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!think!ames!oliveb!amiga!boing!dale
From: dale@boing.UUCP (Dale Luck)
Newsgroups: comp.sys.amiga.tech
Subject: Re: bitmaps with intuition...
Message-ID: <337@boing.UUCP>
Date: 18 Jun 88 16:24:17 GMT
References: <4370@gryphon.CTS.COM> <3170@charon.unm.edu> <56215@sun.uucp> <6261@well.UUCP> <56628@sun.uucp> <6313@well.UUCP>
Reply-To: dale@boing.UUCP (Dale Luck)
Organization: Boing, Milpitas, Ca.
Lines: 18


One way to get right at the bits of a window, indirectly :) is to create
another bitmap and blit from the window to the offscree bitmap.
You will need to allocate your bit, initialize a bitmap, allocate and
initialize a rastport and then call ClipBlit(window->RPort,NewRastPort)
and then you will have all the bits extracted from the different places
of overlapping areas, wherever the window was on the shared screen
assembled in the NewRastPort's bitmap. You can then play with those bits
as you like, when done send them back to the windows RPort. Note that
you need to be careful about the stuff intuition puts in your borders
though.
Dale

-- 
Dale Luck     Boing, Inc.
Although I do contract work for Amiga-LosGatos, my opinions probably
don't represent those of Commodore or its management or its engineers,
but I think the world would be a better place if they did.