al_is_keyboard_haptic man page
al_is_keyboard_haptic — Allegro 5 API
#include <allegro5/allegro.h> bool al_is_keyboard_haptic(ALLEGRO_KEYBOARD *dev)
Returns true if the keyboard has haptic capabilities, false if not.
[Unstable API]: Perhaps could be simplified due to limited support for all the exposed features across all of the platforms. Awaiting feedback from users.