# session_bell_flag

Source: https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/

> 1 if any window in session has bell

format variable tmux3.7c

1 if any window in session has bell

* Scope

  Describes the session being formatted

* Type

  Text

* Usage

  `#{session_bell_flag}`

## Description[#](https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/#description)

1 if any window in session has bell

## Releases[#](https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/#releases)

* [tmux 3.7c](https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/) : present
* tmux 3.2a : not present

## Source[#](https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/#source)

* Defined in

  [`format.c:3581`](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format.c#L3581)

* C source reference

  [`format_cb_session_bell_flag`](https://libtmux.org/en/tmux/3.7c/reference/c-function-format-c-format_cb_session_bell_flag/)

* CLI Manual

  [Original manual entry](https://libtmux.org/en/tmux/3.7c/manual/full/#session_bell_flag)

## Used by[#](https://libtmux.org/en/tmux/3.7c/catalog/formats/session_bell_flag/#used-by)

Library documentation that names this format variable.

* Go

  [`tmux.FormatValues.SessionBellFlag`](https://libtmux.org/en/go/latest/reference/tmux-formatvalues-sessionbellflag/), [`tmux.Session.BellFlag`](https://libtmux.org/en/go/latest/reference/tmux-session-bellflag/)