RGB2HSV

Convert an RGB color record to its HSV equivalent

void RGB2HSV(rColor,hColor);

RGBColor *rColor; is the starting color record

HSVColor *hColor; is the resulting color record

The RGB2HSV procedure converts an RGBColor record to its equivalent

HSVColor record.

rColor is the RGBColor record to be converted

hColor is the resulting, equivalent, HSVColor record

Returns: none

Notes: A SmallFract is the fractional part of a Fixed number, can be assigned

directly to and from a short , and represents values between 0 and 65,535.

By using a SmallFract while short is used as an unsigned integer-sized

value (as is the case with RGBColor), the Color Picker sidesteps

problems with sign extensions in the conversion math.

Referenced by (1):