70#define SDL_PEN_INPUT_DOWN (1u << 0)
71#define SDL_PEN_INPUT_BUTTON_1 (1u << 1)
72#define SDL_PEN_INPUT_BUTTON_2 (1u << 2)
73#define SDL_PEN_INPUT_BUTTON_3 (1u << 3)
74#define SDL_PEN_INPUT_BUTTON_4 (1u << 4)
75#define SDL_PEN_INPUT_BUTTON_5 (1u << 5)
76#define SDL_PEN_INPUT_ERASER_TIP (1u << 30)
@ SDL_PEN_AXIS_TANGENTIAL_PRESSURE