# LibTmux.Session.KillWindowAsync

- **Module:** LibTmux.Session
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/320dc64f4b8b7815842471327a5e6b84a1499bf8/src/LibTmux/Session.Lifecycle.cs#L184
- **Page:** https://libtmux.org/en/dotnet/latest/reference/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.