# window_pane_tree_RB_PREV

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/window.c#L78
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-function-window_pane_tree_rb_prev/

```c
struct window_pane * window_pane_tree_RB_PREV(struct window_pane *elm)
```

## Parameters

- `elm` (`struct window_pane *`)

## Referenced declarations

- [`window_pane`](/en/tmux/latest/reference/c-struct-window_pane/) (struct)