# window.Layout.MainHorizontal

- **Module:** window.Layout
- **Package:** libtmux
- **Language:** Rust
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/window.rs#L1313
- **Page:** https://libtmux.org/en/rs/latest/reference/window-layout-mainhorizontal/

One large pane above a row of the rest.