---
title: effectiveCornerRadii
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsview/effectivecornerradii
---

# effectiveCornerRadii

The effective radius of each corner in the view, calculated based on the corner configuration (cornerConfiguration). This value is nil when the corner configuration is nil.

## Declaration

```swift
@NSCopying var effectiveCornerRadii: NSViewCornerRadii? { get }
```