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From: mystone@mondo.engin.umich.edu (Dean Yu)
Newsgroups: comp.sys.mac.programmer
Subject: Re: More Deep questions: CLUTs, PICTS, and ReserveEntries
Message-ID: <1991Jan28.155940.27265@engin.umich.edu>
Date: 28 Jan 91 15:59:40 GMT
References: <CFRY.91Jan28062706@jove.cs.pdx.edu>
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In article <CFRY.91Jan28062706@jove.cs.pdx.edu> cfry@jove.cs.pdx.edu (Chall Fry) writes:
>
>Fast on the heels of Ben Haller's questions about Mac colors, I have a few
>of my own. In IM V, the Palette Manager talks about using animating colors
>in a windows's palette, and has an interface that looks really slick,
>reserving colors in the CLUT for you so that background windows won't go
>haywire when you pull your Mesmer trick (you remember Mesmer, right?)
>Anyway, due to the reserved nature of the colors, you have to use the
>Palette Manager's PmForeColor instead of RGBForeColor to do your drawing. I
>however, want to animate the colors of a PICT file, drawn with DrawPicture
>(), and DrawPicture only has opcodes for RGBForeColor, so my PICT (which is
>supposed to be 14 levels of pure blue) comes out as a mush of other
>'nonreserved' colors, and fails to animate! Next step: go quick and dirty
>with Color Manager calls. Use SetEntries or RestoreEntries to change the
>ColorTable colors directly. Not too bad, except anything blue in the

  I was banging my head against a wall trying to figure out how to do this
about a year ago.  The article on the Palette Manager in the first issue of
d e v e l o p saved me from a prolonged headache.  If you set the second most
significant bit in ctFlags (I just woke up and can't remember if ctFlags is
an integer or a longint), you'll be able to animate colours in your PICT
resource.  You'll have to mark the entries as animated still, however, but
you won't have to go mucking about with the Colour Manager.
 
_______________________________________________________________________________
Dean Yu                            | E-mail:    mystone@mondo.engin.umich.edu
Patches 'R' Us                     | Real-mail: Dean Yu
A Division of Cyberite Systems     |            909 Church St Apt C
                                   |            Ann Arbor, MI 48104
I'm not the voice of Reason, much  | Phone:     313 662-4073
    less the voice of Cyberite.    |            313 662-4163
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