Joysick battery level change event structure (event.jbattery.*)
Defined in SDL_events.h
typedef struct SDL_JoyBatteryEvent
{/**< SDL_JOYBATTERYUPDATED */
Uint32 type; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 timestamp; /**< The joystick instance id */
SDL_JoystickID which; /**< The joystick battery level */
SDL_JoystickPowerLevel level; } SDL_JoyBatteryEvent;