Pen input flags, as reported by various pen events' pen_state
field.
Defined in <SDL3/SDL_pen.h>
typedef Uint32 SDL_PenInputFlags;
#define SDL_PEN_INPUT_DOWN (1u << 0) /**< pen is pressed down */
#define SDL_PEN_INPUT_BUTTON_1 (1u << 1) /**< button 1 is pressed */
#define SDL_PEN_INPUT_BUTTON_2 (1u << 2) /**< button 2 is pressed */
#define SDL_PEN_INPUT_BUTTON_3 (1u << 3) /**< button 3 is pressed */
#define SDL_PEN_INPUT_BUTTON_4 (1u << 4) /**< button 4 is pressed */
#define SDL_PEN_INPUT_BUTTON_5 (1u << 5) /**< button 5 is pressed */
#define SDL_PEN_INPUT_ERASER_TIP (1u << 30) /**< eraser tip is used */
This datatype is available since SDL 3.1.3.