ALLEGRO_WRITE_MASK_FLAGS(3) ALLEGRO_WRITE_MASK_FLAGS(3)

ALLEGRO_WRITE_MASK_FLAGS - Allegro 5 API

#include <allegro5/allegro.h>
typedef enum ALLEGRO_WRITE_MASK_FLAGS {

Each enabled bit means the corresponding value is written, a disabled bit means it is not.

ALLEGRO_MASK_RED
ALLEGRO_MASK_GREEN
ALLEGRO_MASK_BLUE
ALLEGRO_MASK_ALPHA
ALLEGRO_MASK_DEPTH
ALLEGRO_MASK_RGB - Same as RED | GREEN | BLUE.
ALLEGRO_MASK_RGBA - Same as RGB | ALPHA.

5.1.2

al_set_render_state(3)

Allegro reference manual