al_is_display_haptic man page
al_is_display_haptic — Allegro 5 API
#include <allegro5/allegro.h> bool al_is_display_haptic(ALLEGRO_DISPLAY *dev)
Returns true if the display has haptic capabilities, false if not. This mainly concerns force feedback that shakes a hand held device, such as a phone or a tablet.
[Unstable API]: Perhaps could be simplified due to limited support for all the exposed features across all of the platforms. Awaiting feedback from users.