RGB2HSL

Convert an RGB color record to its HSL equivalent

void RGB2HSL(rColor,hColor);

RGBColor *rColor; is the starting color record

HSLColor *hColor; is the resulting color record

The RGB2HSL procedure converts an RGBColor record to its equivalent

HSLColor record.

rColor is the RGBColor record to be converted

hColor is the resulting, equivalent, HSLColor 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):