Joystick device event structure (event.jdevice.*)
Defined in SDL_events.h
typedef struct SDL_JoyDeviceEvent
{
Uint32 type; /**< SDL_JOYDEVICEADDED or SDL_JOYDEVICEREMOVED */
Uint32 timestamp; /**< In milliseconds, populated using SDL_GetTicks() */
Sint32 which; /**< The joystick device index for the ADDED event, instance id for the REMOVED event */
} SDL_JoyDeviceEvent;