Man pages matching name position_dialog in section 3alleg4:

position_dialog.3alleg4.en	debian 10 / allegro4-doc
position_dialog.3alleg4.en	debian 11 / allegro4-doc
position_dialog.3alleg4.en	debian 12 / allegro4-doc
position_dialog.3alleg4.en	debian 13 / allegro4-doc