###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!)
# SDL_SetX11EventHook

Set a callback for every X11 event.

## Header File

Defined in [<SDL3/SDL_system.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_system.h)

## Syntax

```c
void SDL_SetX11EventHook(SDL_X11EventHook callback, void *userdata);

```

## Function Parameters

|                  |                                                            |
| ---------------- | ---------------------------------------------------------- |
| **callback**     | The [SDL_X11EventHook](SDL_X11EventHook) function to call. |
| **userdata**     | a pointer to pass to every iteration of `callback`         |

## Remarks

The callback may modify the event, and should return [SDL_TRUE](SDL_TRUE)
if the event should continue to be processed, or [SDL_FALSE](SDL_FALSE) to
prevent further processing.

## Version

This function is available since SDL 3.0.0.

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[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySystem](CategorySystem)