I’m developing an application with a NSSplitView in the main NSWindowController which is organized like that:   a menu on the left panel, which contains an outlineView with many choices and a detailView on the right panel which corresponds to the item choosen in the…

Hi everyone, wish you a happy New Year 2020 !   What could be wrong in that methode ? I’m wonder why “window” stay nil.   import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate {         var window: UIWindow?         func application(_ application: UIApplication,…

Dear Friends,   I am using swift 5 for my application development. I created the UI screens using struct in SwiftUI. I do have few classes inherited NSObject. There is a requirement to invoke / show the UI from the class. Below is the code…