# types.TmuxSubscriptionEvent.windowIndex

- **Module:** types.TmuxSubscriptionEvent
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-ts/blob/3fe1ca654b81b8cbf4a13b777a001a3298c87a6f/packages/libtmux/src/types.ts#L629
- **Page:** https://libtmux.org/en/ts/latest/reference/types-tmuxsubscriptionevent-windowindex/

The window's index within the session.