---
title: isFocusRectOfInterestSupported
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/isfocusrectofinterestsupported
---

# isFocusRectOfInterestSupported

Whether the receiver supports focus rectangles of interest.

## Declaration

```swift
var isFocusRectOfInterestSupported: Bool { get }
```

## Discussion

Discussion You may only set the device’s focusRectOfInterest property if this property returns true.

## See Also

### Setting a focus rectangle of interest

- [focusRectOfInterest](avfoundation/avcapturedevice/focusrectofinterest.md)
- [minFocusRectOfInterestSize](avfoundation/avcapturedevice/minfocusrectofinterestsize.md)
- [defaultRectForFocusPoint(ofInterest:)](avfoundation/avcapturedevice/defaultrectforfocuspoint(ofinterest:).md)