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

# isRulerActive

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

## Declaration

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

## See Also

### Configuring the drawing environment

- [tool](pencilkit/pkcanvasview/tool-1kj57.md)
- [allowsFingerDrawing](pencilkit/pkcanvasview/allowsfingerdrawing.md)
- [drawingPolicy](pencilkit/pkcanvasview/drawingpolicy.md)
- [PKCanvasViewDrawingPolicy](pencilkit/pkcanvasviewdrawingpolicy.md)