# control.Subscription.Window.0

- **Module:** control.Subscription
- **Package:** libtmux
- **Language:** Rust
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-rs/blob/84de9258a07d10bdd5f6da01b016a9ae06fe1210/crates/libtmux/src/control.rs#L641
- **Page:** https://libtmux.org/en/rs/latest/reference/control-subscription-window-0/

```rs
0: WindowId
```

The window ID used to scope the watched format.