Provided by: libsdl3-doc_3.2.10+ds-1_all 

NAME
SDL_PenAxisEvent - Pressure-sensitive pen pressure / angle event structure (event.paxis.*)
HEADER FILE
Defined in SDL3/SDL_events.h
SYNOPSIS
#include "SDL3/SDL.h" typedef struct SDL_PenAxisEvent { SDL_EventType type; /**< SDL_EVENT_PEN_AXIS */ Uint32 reserved; Uint64 timestamp; /**< In nanoseconds, populated using SDL_GetTicksNS() */ SDL_WindowID windowID; /**< The window with pen focus, if any */ SDL_PenID which; /**< The pen instance id */ SDL_PenInputFlags pen_state; /**< Complete pen input state at time of event */ float x; /**< X coordinate, relative to window */ float y; /**< Y coordinate, relative to window */ SDL_PenAxis axis; /**< Axis that has changed */ float value; /**< New value of axis */ } SDL_PenAxisEvent;
DESCRIPTION
You might get some of these events even if the pen isn't touching the tablet.
AVAILABILITY
This struct is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.10 SDL_PenAxisEvent(3type)