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Inside Macintosh: QuickDraw GX Environment and Utilities /
Chapter 8 - QuickDraw GX Mathematics / QuickDraw GX Mathematics Reference
Number-Conversion Macros / Format Conversions

ColorToFract

You can use the ColorToFract macro to convert a gxColorValue number to a fract number.

#define ColorToFract(a) (((fract)(a)<<14) + ((fract)(a) +2 >>2))
a
A gxColorValue number to be converted to a fract number.
macro result
A fract number having the same value as the gxColorValue number.
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7 JUL 1996

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