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From: johnhlee@miro.Berkeley.EDU (John H. Lee)
Newsgroups: net.micro.amiga
Subject: Help on Double Buffering Needed
Message-ID: <15898@ucbvax.BERKELEY.EDU>
Date: Thu, 2-Oct-86 22:35:40 EDT
Article-I.D.: ucbvax.15898
Posted: Thu Oct  2 22:35:40 1986
Date-Received: Sat, 4-Oct-86 08:33:18 EDT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: johnhlee@miro.Berkeley.EDU.UUCP (John H. Lee)
Organization: University of California, Berkeley
Lines: 16

I'm distributing this for a friend who needs help on double buffering.
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I am writing a program which uses color cycling and double buffering.  I am
using Intuition to set up the screen and windows and then I make another
viewport with makeVPort() to be used as the alternate bitmap.
I found however, that I can only cycle the colors in the second bitmap, which
I created.  This happens after I call the MrgCop() function.  Somebody, 
please help me!  Everything else works, except this.  Tell me what does
MrgCop do besides change the copper instructions pointed to in the View
structure.

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Well, if anyone can help him, please E-Mail me at ...!ucbvax!ucbmiro!johnhlee
or johnhlee@miro.Berkeley.Edu.   Thanks!