---
title: isRulerActive
framework: pencilkit
role: symbol
role_heading: Instance Property
path: pencilkit/pktoolpicker/isruleractive
---

# isRulerActive

A Boolean value that indicates whether the ruler is visible on the canvas.

## Declaration

```swift
var isRulerActive: Bool { get set }
```

## See Also

### Customizing picker behavior

- [colorUserInterfaceStyle](pencilkit/pktoolpicker/coloruserinterfacestyle.md)
- [overrideUserInterfaceStyle](pencilkit/pktoolpicker/overrideuserinterfacestyle.md)
- [showsDrawingPolicyControls](pencilkit/pktoolpicker/showsdrawingpolicycontrols.md)
- [stateAutosaveName](pencilkit/pktoolpicker/stateautosavename.md)