Constant representing the mask value in sprites. allegro game programming library.
#include <allegro.h>
#define MASK_COLOR_8 0
#define MASK_COLOR_15 (5.5.5 pink)
#define MASK_COLOR_16 (5.6.5 pink)
#define MASK_COLOR_24 (8.8.8 pink)
#define MASK_COLOR_32 (8.8.8 pink)
Constants representing the colors used to mask transparent sprite pixels for each color depth. In 256-color resolutions this is zero, and in truecolor modes it is bright pink (maximum red and blue, zero green).
bitmap_mask_color(3alleg4), makecol(3alleg4), draw_sprite(3alleg4), masked_blit(3alleg4)