Pixelgrabber negative pixel values

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#14791

From: P.Banoub
Date: Mon, 02 Aug 1999 00:00

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Hi.

I'm analysing an image with pixel grabber and extracting RGB values from
it.
Pixelgrabber returns a value for the whole pixel that represents the
colour.
eg. White = -1
    Cyan = -16711681

I can extract RGB valuse FROM this negative number but I dont know how
to calculate this number from giveb RGB values.

eg. R = 100 G=100 & B = 100
How do I calculate the negative pixel colour?

Any help greatly appreciated.
Paul

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From: "P.Banoub" <paul.banoub@virgin.net>
Subject: Pixelgrabber negative pixel values
Date: 1999/08/02
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