# SPAWN_BEFORE

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tmux.h#L2353
- **Page:** https://libtmux.org/en/tmux/3.7c/reference/c-define-tmux-h-spawn_before/

```c
#define SPAWN_BEFORE 0x8
```

## Referenced by

- [`cmd_join_pane_exec`](/en/tmux/3.7c/reference/c-function-cmd-join-pane-c-cmd_join_pane_exec/) (function)
- [`cmd_split_window_exec`](/en/tmux/3.7c/reference/c-function-cmd-split-window-c-cmd_split_window_exec/) (function)
- [`layout_get_tiled_cell`](/en/tmux/3.7c/reference/c-function-layout_get_tiled_cell/) (function)
- [`layout_split_pane`](/en/tmux/3.7c/reference/c-function-layout_split_pane/) (function)
- [`window_add_pane`](/en/tmux/3.7c/reference/c-function-window_add_pane/) (function)