Provided by: allegro5-doc_5.0.10-2_all 

NAME
al_load_bitmap_font - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_font.h>
ALLEGRO_FONT *al_load_bitmap_font(const char *fname)
DESCRIPTION
Load a bitmap font from. It does this by first calling al_load_bitmap(3alleg5) and then
al_grab_font_from_bitmap(3alleg5). If you want to for example load an old A4 font, you could load the
bitmap yourself, then call al_convert_mask_to_alpha(3alleg5) on it and only then pass it to
al_grab_font_from_bitmap(3alleg5).
Allegro reference manual al_load_bitmap_font(3alleg5)()