# WINDOW_TREE_DEFAULT_KEY_FORMAT

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/window-tree.c#L59
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-window-tree-c-window_tree_default_key_format/

```c
#define WINDOW_TREE_DEFAULT_KEY_FORMAT "#{?#{e|<:#{line},10}," \
    "#{line}" \
"," \
    "#{?#{e|<:#{line},36}," \
            "M-#{a:#{e|+:97,#{e|-:#{line},10}}}" \
    "," \
            "" \
    "}" \
"}"
```

## Referenced by

- [`window_tree_init`](/en/tmux/3.2a/reference/c-function-window-tree-c-window_tree_init/) (function)