---
name: "xcb_ungrab_button"
section: "3"
platform: "linux"
package: "libxcb"
version: "1.17.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/xcb_ungrab_button"
---

# xcb\_ungrab\_button(3)

## NAME

xcb\_ungrab\_button -

## SYNOPSIS

**#include \<xcb/xproto.h\>**

### Request function

xcb\_void\_cookie\_t **xcb\_ungrab\_button**(xcb\_connection\_t \**conn*, uint8\_t *button*, xcb\_window\_t *grab\_window*, uint16\_t *modifiers*);\

## REQUEST ARGUMENTS

- *conn*

  The XCB connection to X11.

- *button*

  One of the following values:

  - *XCB\_BUTTON\_INDEX\_ANY*

    Any of the following (or none):

  - *XCB\_BUTTON\_INDEX\_1*

    The left mouse button.

  - *XCB\_BUTTON\_INDEX\_2*

    The right mouse button.

  - *XCB\_BUTTON\_INDEX\_3*

    The middle mouse button.

  - *XCB\_BUTTON\_INDEX\_4*

    Scroll wheel. TODO: direction?

  - *XCB\_BUTTON\_INDEX\_5*

    Scroll wheel. TODO: direction?

  TODO: NOT YET DOCUMENTED.

- *grab\_window*

  TODO: NOT YET DOCUMENTED.

- *modifiers*

  TODO: NOT YET DOCUMENTED.

## DESCRIPTION

## RETURN VALUE

Returns an *xcb\_void\_cookie\_t*. Errors (if any) have to be handled in the event loop.

If you want to handle errors directly with *xcb\_request\_check* instead, use *xcb\_ungrab\_button\_checked*. See **[xcb-requests(3)](/xcb-requests/3.md)** for details.

## ERRORS

This request does never generate any errors.

## SEE ALSO

## AUTHOR

Generated from xproto.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.