# types.TmuxLayoutChangeEvent

- **Module:** types
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** interface
- **Source:** https://github.com/libtmux/libtmux-ts/blob/46cccfef2a546de55ce8b308249b8c76339089a0/packages/libtmux/src/types.ts#L743
- **Page:** https://libtmux.org/en/ts/latest/reference/types-tmuxlayoutchangeevent/

A window's layout changed.

[`layout`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-layout/) and [`visibleLayout`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-visiblelayout/) carry whatever tmux hands this connection: on
3.8+ that is JSON, the same wire form a snapshot's [`window_layout`](/en/tmux/latest/catalog/formats/window_layout/) reports
(the connection requests it on attach); before 3.8 tmux has only the
classic layout string, on both sides. Either is an opaque token to compare
for equality, not a grammar to parse.

## Members

### Other members

- [`flags`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-flags/) (property)
- [`kind`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-kind/) (property)
- [`layout`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-layout/) (property)
- [`visibleLayout`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-visiblelayout/) (property)
- [`windowId`](/en/ts/latest/reference/types-tmuxlayoutchangeevent-windowid/) (property)