Manpages - SDL_JoyHatEvent.3

SDL_JoyHatEvent - Joystick hat position change event structure

  typedef struct{
    Uint8 type;
    Uint8 which;
    Uint8 hat;
    Uint8 value;
  } SDL_JoyHatEvent;

type

SDL_JOY

which

Joystick device index

hat

Joystick hat index

value

Hat position

SDL_JoyHatEvent is a member of the SDL_Event union and is used when an event of type SDL_JOYHATMOTION is reported.

A SDL_JOYHATMOTION event occurs when ever a user moves a hat on the joystick. The field which is the index of the joystick that reported the event and hat is the index of the hat (for a more detailed exlaination see the Joystick section). value is the current position of the hat. It is a logically OR’d combination of the following values (whose meanings should be pretty obvious:) :

• :: SDL_HAT_CENTERED
• :: SDL_HAT_UP
• :: SDL_HAT_RIGHT
• :: SDL_HAT_DOWN
• :: SDL_HAT_LEFT

The following defines are also provided:

• :: SDL_HAT_RIGHTUP
• :: SDL_HAT_RIGHTDOWN
• :: SDL_HAT_LEFTUP
• :: SDL_HAT_LEFTDOWN

SDL_Event, Joystick Functions, SDL_JoystickEventState, SDL_JoystickGetHat