# LibTmux::Async::Server#list_windows

- **Module:** LibTmux::Async
- **Package:** libtmux-async
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/c8b839595d5a30e271e3f9be0d0fe811ddb11b7e/gems/libtmux/lib/libtmux/server.rb#L267
- **Public owner:** LibTmux::Server#list_windows
- **Page:** https://libtmux.org/en/ruby/v0.1.0/reference/libtmux-async-server-list_windows/

tmux command: [`list-windows`](/en/tmux/latest/manual/list-windows/) server scope, [`cmd_list_windows_exec`](/en/tmux/latest/reference/c-function-cmd-list-windows-c-cmd_list_windows_exec/)

```
def list_windows: (
  ?timeout: ::Numeric,
  ?cancel: untyped
) -> ::Array[::LibTmux::Window]
```

Behavior: Live acquisition.

Behavior contract: Live acquisition.

## Parameters

- `timeout` (`::Numeric`)
- `cancel` (`untyped`)