# tmux.WindowOptionValues.TreeModePreviewFormat

- **Module:** tmux.WindowOptionValues
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/option_generated.go#L2795
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-windowoptionvalues-treemodepreviewformat/

```
tmux.WindowOptionValues.TreeModePreviewFormat() -> OptionValue[string]
```

TreeModePreviewFormat returns materialized "tree-mode-preview-format" as [OptionValue] with value type OptionValue[string] from window option values; it does not query tmux. Available as STRING since tmux 3.7; set it with [Window.SetTreeModePreviewFormat] or [GlobalWindowScope.SetTreeModePreviewFormat].