# tmux.WindowOptionValues.WindowSize

- **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#L2823
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-windowoptionvalues-windowsize/

```
tmux.WindowOptionValues.WindowSize() -> OptionValue[WindowSize]
```

WindowSize returns materialized "window-size" as [OptionValue] with value type OptionValue[WindowSize] from window option values; it does not query tmux. Available as CHOICE since tmux 3.2a (choices: "largest", "smallest", "manual", "latest"); set it with [Window.SetWindowSize] or [GlobalWindowScope.SetWindowSize].