# libtmux.core/join-pane!

- **Module:** libtmux.core
- **Package:** io.github.libtmux:libtmux-clojure
- **Language:** Clojure
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-java/blob/5f88402151ff08fc0390dd438b90963692ec3fe4/libtmux-clojure/src/main/clojure/libtmux/core.clj#L324
- **Public owner:** libtmux.core
- **Page:** https://libtmux.org/en/clojure/latest/reference/libtmux-core-join-pane/

```
(join-pane! pane window)
```

Joins a pane to a window.

[[split-pane!]] creates a new pane instead of relocating an existing one.

## Parameters

- `pane`
- `window`

## tmux command

The tmux commands behind `join-pane!`.

- [`join-pane`](/en/tmux/latest/manual/join-pane/)

## tmux C API

The C declarations in tmux that implement these commands.

- [`cmd_join_pane_entry`](/en/tmux/latest/reference/c-variable-cmd_join_pane_entry/) (attribute)
- [`cmd_join_pane_exec`](/en/tmux/latest/reference/c-function-cmd-join-pane-c-cmd_join_pane_exec/) (function)