# LibTmux.Query.ClientAttachment.windowId

- **Package:** libtmux-haskell
- **Language:** Haskell
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-haskell/blob/663e212622a02aa74a9bdc8ff71e2b45fcb1d4d5/src/LibTmux/Query/ClientAttachment.hs#L23
- **Page:** https://libtmux.org/en/haskell/latest/reference/libtmux-query-clientattachment-v-windowid/

```haskell
windowId :: Field ClientAttachment WindowId
```

Signature types: [`Field`](/en/haskell/latest/reference/libtmux-query-t-field/), [`ClientAttachment`](/en/haskell/latest/reference/libtmux-snapshot-t-clientattachment/), [`WindowId`](/en/haskell/latest/reference/libtmux-id-t-windowid/).

Native ID of the selected physical window.

## Referenced declarations

- [`LibTmux.Snapshot.ClientAttachment`](/en/haskell/latest/reference/libtmux-snapshot-t-clientattachment/) (data type)
- [`LibTmux.Query.Field`](/en/haskell/latest/reference/libtmux-query-t-field/) (data type)
- [`LibTmux.Id.WindowId`](/en/haskell/latest/reference/libtmux-id-t-windowid/) (data type)