Dismiss window with an ID on macOS <14

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Created Oct ’24

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I want to dismiss a window when a user presses a button. I have tried the @Environment dismissWindow, however that's macOS 14+. My app requires compatibility with macOS 13 at minimum.

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Answer 1

Claude31 OP

Oct ’24

Did you consider using NSNotification instead ?

addObserver in the window, which will close it

Declare at top level (outside any class)

    public static let kForceClose = Notification.Name("forceClose")

In viewDidLoad of the NSWindowController:

        NotificationCenter.default.addObserver(self, selector: #selector(closeIt(_:)), name: .kClose, object: nil)

    @objc func forceClose(_ sender: Notification) {
        self.window?.close()
    }

Send notification in Button IBAction

        NotificationCenter.default.post(name: .kForceClose, object: self)

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