---
title: OSSystemExtensionRequestDelegate
framework: systemextensions
role: symbol
role_heading: Protocol
path: systemextensions/ossystemextensionrequestdelegate
---

# OSSystemExtensionRequestDelegate

A type that receives updates about the progress of a request.

## Declaration

```swift
protocol OSSystemExtensionRequestDelegate : NSObjectProtocol
```

## Mentioned in

Installing System Extensions and Drivers

## Topics

### Handling Success and Failure

- [request(_:didFinishWithResult:)](systemextensions/ossystemextensionrequestdelegate/request(_:didfinishwithresult:).md)
- [OSSystemExtensionRequest.Result](systemextensions/ossystemextensionrequest/result.md)
- [request(_:didFailWithError:)](systemextensions/ossystemextensionrequestdelegate/request(_:didfailwitherror:).md)

### Handling Indeterminate Installs

- [requestNeedsUserApproval(_:)](systemextensions/ossystemextensionrequestdelegate/requestneedsuserapproval(_:).md)
- [request(_:actionForReplacingExtension:withExtension:)](systemextensions/ossystemextensionrequestdelegate/request(_:actionforreplacingextension:withextension:).md)
- [OSSystemExtensionProperties](systemextensions/ossystemextensionproperties.md)
- [OSSystemExtensionRequest.ReplacementAction](systemextensions/ossystemextensionrequest/replacementaction.md)

### Instance Methods

- [request(_:foundProperties:)](systemextensions/ossystemextensionrequestdelegate/request(_:foundproperties:).md)

## Relationships

### Inherits From

- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Working with a Delegate

- [delegate](systemextensions/ossystemextensionrequest/delegate.md)