al_save_bitmap - Allegro 5 API

       Saves an ALLEGRO_BITMAP(3alleg5) to an image file.  The file type is determined by the extension.

       Returns true on success, false on error.

              Note:  the  core Allegro library does not support any image file formats by default.  You must use
              the allegro_image addon, or register your own format handler.

       al_save_bitmap - Allegro 5 API

al_save_bitmap_f(3alleg5), al_register_bitmap_saver(3alleg5), al_init_image_addon(3alleg5)

Allegro reference manual                                                                 al_save_bitmap(3alleg5)

              #include <allegro5/allegro.h>

              bool al_save_bitmap(const char *filename, ALLEGRO_BITMAP *bitmap)