OpColor
OpColor Set RGB values used by addPin, subPin and blend modes #include <Quickdraw.h> Color Quickdraw
RGBColor *RGBColor ; requested red, green and blue components OpColor sets the red, green, and blue values used by addPin, subPin, and blend modes.
RGBColor is a record type which specifies a color's red, green, and blue components as 16-bit unsigned integers.
Notes: This sets drawing mode color values, which are stored in the grafVars
handle in the CGrafPort. This procedure will have no effect unless the current port is a cGrafPort.