Get a list of currently connected joysticks.
a pointer filled in with the number of joysticks returned, may be NULL.
a 0 terminated array of joystick instance IDs or NULL on failure; call SDL_GetError() for more information. This should be freed with SDL_free() when it is no longer needed.
SDL_HasJoystick SDL_OpenJoystick
See Implementation
Get a list of currently connected joysticks.