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al_convert_mask_to_alpha(3) al_convert_mask_to_alpha(3)

al_convert_mask_to_alpha - Allegro 5 API


#include <allegro5/allegro.h>
void al_convert_mask_to_alpha(ALLEGRO_BITMAP *bitmap, ALLEGRO_COLOR mask_color)

    

Convert the given mask color to an alpha channel in the bitmap. Can be used to convert older 4.2-style bitmaps with magic pink to alpha-ready bitmaps.

ALLEGRO_COLOR(3)
Allegro reference manual