DOKK / manpages / debian 10 / allegro5-doc / al_get_joystick_active.3alleg5.en
al_get_joystick_active(3alleg5) al_get_joystick_active(3alleg5)

al_get_joystick_active - Allegro 5 API

#include <allegro5/allegro.h>
bool al_get_joystick_active(ALLEGRO_JOYSTICK *joy)
    

Return if the joystick handle is “active”, i.e. in the current configuration, the handle represents some physical device plugged into the system. al_get_joystick(3alleg5) returns active handles. After reconfiguration, active handles may become inactive, and vice versa.

al_reconfigure_joysticks(3alleg5)

Allegro reference manual