---
title: isDeferredStartSupported
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturevideopreviewlayer/isdeferredstartsupported
---

# isDeferredStartSupported

A BOOL value that indicates whether the preview layer supports deferred start.

## Declaration

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

## Discussion

Discussion You can only set the isDeferredStartEnabled property to true if the preview layer supports deferred start.

## See Also

### Configuring deferred start

- [isDeferredStartEnabled](avfoundation/avcapturevideopreviewlayer/isdeferredstartenabled.md)