Library reference for (c211 color)


(color r g b)
=> a color

Create a new color with red, green, and blue values of r, g, and b respectively.

(color-equal? color color)
=> #t or #f

Test if two colors are equal.

(color-ref color band)
=> an integer in the range [0, 255]

band should be one of either the symbols red, green, or blue or the corresponding integers 0, 1, or 2. Access the color object, returning the amount of that specified color as an integer in the range [0, 255] where 0 is none of that color and 255 is the maximum amount.

(color-set! color band value)
=> unspecified

band should be one of either the symbols red, green, or blue or the corresponding integers 0, 1, or 2. Alter the color object setting the value (should be in the range [0, 255]) in that band.

(color? obj)
=> #t or #f

Test if obj is a color.