al_fopen_interface - Allegro 5 API

       Opens    a    file    using    the   specified   interface,   instead   of   the   interface   set   with
       al_set_new_file_interface(3alleg5).

       al_fopen_interface - Allegro 5 API

al_fopen(3alleg5)

Allegro reference manual                                                             al_fopen_interface(3alleg5)

              #include <allegro5/allegro.h>

              ALLEGRO_FILE *al_fopen_interface(const ALLEGRO_FILE_INTERFACE *drv,
                 const char *path, const char *mode)