---
title: AVCaptureDevice.PrimaryConstituentDeviceSwitchingBehavior.restricted
framework: avfoundation
role: symbol
role_heading: Case
path: avfoundation/avcapturedevice/primaryconstituentdeviceswitchingbehavior-swift.enum/restricted
---

# AVCaptureDevice.PrimaryConstituentDeviceSwitchingBehavior.restricted

The device restricts fallback camera selection to certain conditions.

## Declaration

```swift
case restricted
```

## Discussion

Discussion The camera doesn’t restrict camera switches necessary to honor the requested video zoom factor.

## See Also

### Switching behaviors

- [AVCaptureDevice.PrimaryConstituentDeviceSwitchingBehavior.unsupported](avfoundation/avcapturedevice/primaryconstituentdeviceswitchingbehavior-swift.enum/unsupported.md)
- [AVCaptureDevice.PrimaryConstituentDeviceSwitchingBehavior.auto](avfoundation/avcapturedevice/primaryconstituentdeviceswitchingbehavior-swift.enum/auto.md)
- [AVCaptureDevice.PrimaryConstituentDeviceSwitchingBehavior.locked](avfoundation/avcapturedevice/primaryconstituentdeviceswitchingbehavior-swift.enum/locked.md)