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[OSX][Swift]ウィンドウがアクティブかを判定する方法

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ウィンドウが画面のトップにあるかを判定する方法。

参考コード

example.swift
    public func isWindowActive() -> Bool {
        //ウィンドウ群を配列にて取得する
        let windows: NSArray = NSApplication.shared().windows as NSArray
        //サンプルのため、0番目のウィンドウを判定
        let window: NSWindow = windows.firstObject as! NSWindow

        return window.isKeyWindow  // true : トップにある, false : トップでない
    }

備考

画面が複数ある場合は「NSApplication.shared().windows」の中身を取り出した上でisKeyWindowプロパティを参照する。

yu_okb
アスリート並の身体能力を持つiOSエンジニア。定時後はジムにしか行きません。
https://itunes.apple.com/jp/developer/ohkubo-yuhei/id1003046002?mt=8&ign-mpt=uo%3D2
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