Restoring window state is not working correctly

[MartinZikmund]

The full screen state does not seem to work when restoring the window presenter or I am probably missing something. I created a sample project where you can see the behavior.

UnoAppWindow.zip

Window.mp4

        MainWindow = builder.Window;
        MainWindow.Closed += OnMainWindowClosed;
        RestoreWindowPosition();

#if DEBUG
        MainWindow.EnableHotReload();
#endif
        MainWindow.SetWindowIcon();

        Host = await builder.NavigateAsync<Shell>();
    }

    private void OnMainWindowClosed(object sender, WindowEventArgs args)
    {
        SaveWindowPosition();
    }

    private void SaveWindowPosition()
    {
        var settings = ApplicationData.Current.LocalSettings;
        settings.Values["WindowWidth"] = MainWindow!.AppWindow.Size.Width;
        settings.Values["WindowHeight"] = MainWindow.AppWindow.Size.Height;
        settings.Values["WindowX"] = MainWindow.AppWindow.Position.X;
        settings.Values["WindowY"] = MainWindow.AppWindow.Position.Y;
        settings.Values["Presenter"] = (int)MainWindow.AppWindow.Presenter.Kind;
    }

    private void RestoreWindowPosition()
    {
        var settings = ApplicationData.Current.LocalSettings;

        if (settings.Values.TryGetValue("WindowWidth", out var width) &&
            settings.Values.TryGetValue("WindowHeight", out var height) &&
            settings.Values.TryGetValue("WindowX", out var x) &&
            settings.Values.TryGetValue("WindowY", out var y) &&
            settings.Values.TryGetValue("Presenter", out var p))
        {
            var size = new SizeInt32 { Width = (int)width, Height = (int)height };
            var position = new PointInt32 { X = (int)x, Y = (int)y };

            MainWindow!.AppWindow.Resize(size);
            MainWindow.AppWindow.Move(position);
            MainWindow.AppWindow.SetPresenter((AppWindowPresenterKind)p);
        }
    }

Originally posted by @ArchieCoder in #18338 (reply in thread)

[ArchieCoder]

Following thread

[mobynet1]

Following thread...

One question: How effective is this when run from a multi-monitor system, the coordinates are saved, and then the next time the app opens up on a single monitor app system? I have my laptop in a docking station so this was an issue I had to solve in WPF. If you try to set the position to a point in the current monitor landscape that is out of range, what happens?

[ArchieCoder]

@mobynet1 This is more difficult indeed. Morten does the management of it for WinUI platform with his WinUIEx library, see #18338 (comment)