redhat man page for makecol

makecol(3alleg4)                                                  Allegro manual                                                  makecol(3alleg4)

NAME
       makecol - Converts an RGB value into the current pixel format. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int makecol(int r, int g, int b);

DESCRIPTION
       Converts  colors from a hardware independent format (red, green, and blue values ranging 0-255) to the pixel format required by the current
       video mode, calling the preceding 8, 15, 16, 24, or 32-bit makecol functions as appropriate. Example:

          /* Regardless of color depth, this will look green. */
          int green_color = makecol(0, 255, 0);

RETURN VALUE
       Returns the requested RGB triplet in the current color depth.

SEE ALSO
       makeacol(3alleg4), makecol8(3alleg4), makecol_depth(3alleg4), makecol15_dither(3alleg4), rgb_map(3alleg4), set_color_depth(3alleg4)

Allegro                                                            version 4.4.2                                                  makecol(3alleg4)