Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!cs.uoregon.edu!allenb
From: allenb@cs.uoregon.edu (Allen F. Brookes)
Newsgroups: comp.sys.mac.programmer
Subject: Re: CopyBits Help Needed! (was: DrawPicture to offscreen messes colors up)
Message-ID: <1991Mar19.210800.14823@cs.uoregon.edu>
Date: 19 Mar 91 21:08:00 GMT
References: <faTe02cy052n01@JUTS.ccc.amdahl.com>
Sender: usenet@cs.uoregon.edu (Netnews Owner)
Organization: Department of Computer Science, University of Oregon
Lines: 9

I have had similar problems with copybits.  I want to copy images from
offscreen bitmap and not worry about what colors are in either CLUT.  My
solution was to do scanline by scanline block transfers to the video card.
This works fine for the old 8-bit video card but does not seem to work for
the 8-24 cards. Tech note 288 says that block transfers to Nubus cards are 
not supported but does not say it can't be done.  Does anyone know how I
can make block transfers work to the 8-24 card?

Allen Brookes