---
title: "windowDidResignMain(_:)"
framework: appkit
role: symbol
role_heading: Instance Method
path: "appkit/nswindowdelegate/windowdidresignmain(_:)"
---

# windowDidResignMain(_:)

Tells the delegate that the window has resigned main window status.

## Declaration

```swift
@MainActor optional func windowDidResignMain(_ notification: Notification)
```

## Parameters

- `notification`: A notification named doc://com.apple.appkit/documentation/AppKit/NSWindow/didResignMainNotification.

## Discussion

Discussion You can retrieve the window object in question by sending object to notification.

## See Also

### Managing Main Status

- [windowDidBecomeMain(_:)](appkit/nswindowdelegate/windowdidbecomemain(_:).md)