Allegro 5 api
#include <allegro5/allegro_color.h> ALLEGRO_COLOR al_color_cmyk(float c, float m, float y, float k)
Return an ALLEGRO_COLOR(3alleg5) structure from CMYK values (cyan, magenta, yellow, black).
al_color_cmyk_to_rgb(3alleg5), al_color_rgb_to_cmyk(3alleg5)