Legacy Document

Inside Macintosh: Advanced Color Imaging Reference /

Chapter 2 - Color Picker Manager Reference /

Color Picker Manager Functions / Converting Colors Among Color Models

RGB2HSL

Converts an RGB color to an HSL color.

pascal void RGB2HSL (const RGBColor *rColor, 
HSLColor *hColor);

rColor

A pointer to a Color QuickDraw RGBColor structure specifying the RGB color to be converted.

hColor

A pointer to an HSLColor structure (page 2-33). On output, the converted color.

DISCUSSION

The RGB2HSL function converts the RGB color specified in the rColor parameter to the HSL color pointed to in the hColor parameter.