al_convert_mask_to_alpha (3alleg5)

• #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(3alleg5)