# LibTmux.Session.KillWindowAsync

- **Module:** LibTmux.Session
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/6656a563ec9e07ab52e0c3ac96f7704fc94cc0c0/src/LibTmux/Session.Lifecycle.cs#L195
- **Page:** https://libtmux.org/reference/dotnet/libtmux-session-killwindowasync/

```
LibTmux.Session.KillWindowAsync(target: string?, cancellationToken: CancellationToken) -> Task
```

Stops one window in this session.

## Parameters

- `target` (string?) — The window target, or null for the active window.
- `cancellationToken` (CancellationToken) — Cancels the tmux command.