al_set_window_title - Allegro 5 API

       Set the title on a display.

       al_set_window_title - Allegro 5 API

al_set_display_icon(3alleg5), al_set_display_icons(3alleg5)

Allegro reference manual                                                            al_set_window_title(3alleg5)

              #include <allegro5/allegro.h>

              void al_set_window_title(ALLEGRO_DISPLAY *display, const char *title)