---
title: "openWindow(with:completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusteradministratorcommissioning/openwindow(with:completionhandler:)"
---

# openWindow(with:completionHandler:)

## Declaration

```swift
func openWindow(with params: MTRAdministratorCommissioningClusterOpenCommissioningWindowParams, completionHandler: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func openWindow(with params: MTRAdministratorCommissioningClusterOpenCommissioningWindowParams) async throws
```