---
title: "readAttributeMode(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwindowcovering/readattributemode(completionhandler:)"
---

# readAttributeMode(completionHandler:)

## Declaration

```swift
func readAttributeMode(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeMode() async throws -> NSNumber
```