---
name: "xcb_randr_add_output_mode_checked"
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_randr_add_output_mode"
---

# xcb\_randr\_add\_output\_mode\_checked(3)

Part of [xcb\_randr\_add\_output\_mode(3)](/xcb_randr_add_output_mode/3.md).

## NAME

xcb\_randr\_add\_output\_mode -

## SYNOPSIS

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

### Request function

xcb\_void\_cookie\_t **xcb\_randr\_add\_output\_mode**(xcb\_connection\_t \**conn*, xcb\_randr\_output\_t *output*, xcb\_randr\_mode\_t *mode*);\

## REQUEST ARGUMENTS

- *conn*

  The XCB connection to X11.

- *output*

  TODO: NOT YET DOCUMENTED.

- *mode*

  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\_randr\_add\_output\_mode\_checked*. See **[xcb-requests(3)](/xcb-requests/3.md)** for details.

## ERRORS

This request does never generate any errors.

## SEE ALSO

## AUTHOR

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