---
name: "SDL_SetX11EventHook"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_SetX11EventHook"
---

# SDL\_SetX11EventHook(3)

Set a callback for every X11 event.

## NAME

SDL\_SetX11EventHook - Set a callback for every X11 event.

## HEADER FILE

Defined in SDL3/SDL\_system.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**void SDL\_SetX11EventHook(SDL\_X11EventHook callback, void \*userdata);**

## DESCRIPTION

The callback may modify the event, and should return true if the event should continue to be processed, or false to prevent further processing.

## FUNCTION PARAMETERS

- *callback*

  the  **SDL\_X11EventHook**\
    function to call.

- *userdata*

  a pointer to pass to every iteration of **callback** .

## AVAILABILITY

This function is available since SDL 3.2.0.