# LibTmux.Id.windowIdValue

- **Package:** libtmux-haskell
- **Language:** Haskell
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-haskell/blob/581f0ee45016ffb2283366bb1edc1658df26c5ed/src/LibTmux/Id.hs#L99
- **Page:** https://libtmux.org/en/haskell/latest/reference/libtmux-id-v-windowidvalue/

```haskell
windowIdValue :: WindowId -> Integer
```

Signature types: [`WindowId`](/en/haskell/latest/reference/libtmux-id-t-windowid/), [`Integer`](https://hackage.haskell.org/package/base-4.22.0.0/docs/Prelude.html#t:Integer).

Read the numeric physical window ID.

## Referenced declarations

- [`LibTmux.Id.WindowId`](/en/haskell/latest/reference/libtmux-id-t-windowid/) (data type)