< Axis that has changed
< Complete pen input state at time of event
< In nanoseconds, populated using SDL_GetTicksNS()
< SDL_EVENT_PEN_AXIS
< New value of axis
< The pen instance id
< The window with pen focus, if any
< X coordinate, relative to window
< Y coordinate, relative to window
Pressure-sensitive pen pressure / angle event structure (event.paxis.*)
You might get some of these events even if the pen isn't touching the tablet.
\since This struct is available since SDL 3.2.0.