---
title: objectWillChange
framework: swiftui
role: symbol
role_heading: Instance Property
path: swiftui/imagerenderer/objectwillchange
---

# objectWillChange

A publisher that informs subscribers of changes to the image.

## Declaration

```swift
final let objectWillChange: PassthroughSubject<Void, Never>
```

## Discussion

Discussion The renderer’s ObjectWillChangePublisher publishes Void elements. Subscribers should interpret any event as indicating that the contents of the image may have changed.

## See Also

### Producing a stream of images

- [isObservationEnabled](swiftui/imagerenderer/isobservationenabled.md)