---
name: "SDL_PenAxisEvent"
section: "3type"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_PenAxisEvent"
---

# SDL\_PenAxisEvent(3type)

Pressure-sensitive pen pressure / angle event structure (event.paxis.\*)

## 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.