# prev_window_active

Source: https://libtmux.org/en/tmux/latest/catalog/formats/prev_window_active/

> 1 if previous window in W: loop is active

format variable tmux3.7c

1 if previous window in W: loop is active

* Type

  Text

* Usage

  `#{prev_window_active}`

## Description[#](https://libtmux.org/en/tmux/latest/catalog/formats/prev_window_active/#description)

1 if previous window in W: loop is active

## Releases[#](https://libtmux.org/en/tmux/latest/catalog/formats/prev_window_active/#releases)

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

## Source[#](https://libtmux.org/en/tmux/latest/catalog/formats/prev_window_active/#source)

* Defined in

  [`format.c:4721`](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/format.c#L4721)

* C source reference

  [`format_table`](https://libtmux.org/en/tmux/latest/reference/c-variable-format-c-format_table/)

* CLI Manual

  [Original manual entry](https://libtmux.org/en/tmux/latest/manual/full/#prev_window_active)