NAME

       al_color_rgb_to_cmyk - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_color.h>

              void al_color_rgb_to_cmyk(float red, float green, float blue,
                 float *cyan, float *magenta, float *yellow, float *key)

DESCRIPTION

       Each  RGB  color  can  be  represented  in CMYK with a K component of 0 with the following
       formula:

              C = 1 - R
              M = 1 - G
              Y = 1 - B
              K = 0

       This function will instead find the representation  with  the  maximal  value  for  K  and
       minimal color components.

SEE ALSO

       al_color_cmyk(3alleg5), al_color_cmyk_to_rgb(3alleg5)