###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_PenAxisEvent Pressure-sensitive pen pressure / angle event structure (event.paxis.*) ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_events.h) ## Syntax ```c 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; ``` ## Remarks You might get some of these events even if the pen isn't touching the tablet. ## Version This struct is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIStruct](CategoryAPIStruct), [CategoryEvents](CategoryEvents)