# window_panes

Source: https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/

> Number of panes in window

format variable tmux3.2a

Number of panes in window

* Scope

  Describes the window being formatted

* Type

  Text

* Usage

  `#{window_panes}`

## Description[#](https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/#description)

Number of panes in window

## Releases[#](https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/#releases)

* [tmux 3.7c](https://libtmux.org/en/tmux/3.7c/catalog/formats/window_panes/) : present
* [tmux 3.2a](https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/) : present

## Source[#](https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/#source)

* Defined in

  [`format.c:2963`](https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/format.c#L2963)

* C source reference

  [`format_cb_window_panes`](https://libtmux.org/en/tmux/3.2a/reference/c-function-format-c-format_cb_window_panes/)

* CLI Manual

  [Original manual entry](https://libtmux.org/en/tmux/3.2a/manual/full/#window_panes)

## Used by[#](https://libtmux.org/en/tmux/3.2a/catalog/formats/window_panes/#used-by)

Library documentation that names this format variable.

* Go

  [`tmux.FormatValues.WindowPanes`](https://libtmux.org/en/go/latest/reference/tmux-formatvalues-windowpanes/), [`tmux.Window.PaneCount`](https://libtmux.org/en/go/latest/reference/tmux-window-panecount/)