A WinUI3 window which IsMaximizable and IsResizable has been set to false, still can be maximized into fullscreen

[efreykongcn]

Describe the bug

In WinUI3 packaged app.

On a WinUI 3 window, which IsMaximizable and IsResizable has been set to false, still can be maximized info fullscreen by double clicks it's title bar.

Steps to reproduce the bug

In a new created blank WinUI3 app:

1. Edit OnLaunched method in App.xaml.cs file, append below code after m_window = new MainWindow();:

            var presenter = (OverlappedPresenter)m_window.AppWindow.Presenter;
            presenter.IsResizable = false;
            presenter.IsMaximizable = false;
            presenter.IsMinimizable = false;

2. Press F5 to run the app.
3. On the Startup window, it is true that the minimize button and the maximize button are invisible, and the window can not be resized.
4. Double click it's title bar.
5. The window becomes fullscreen.

Expected behavior

Window's size shouldn't change.

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.5.2: 1.5.240404000

Windows version

Windows 11 (22H2): Build 22621

Additional context

Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.9.6

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one. Thank you!

Open similar issues:

• Window Maximization Behavior Consistency Issues (#9427), similarity score: 0.86
• IsMaximizable = false but Maximize menu item was Enabled in right click Context menu on titlebar. (#8201), similarity score: 0.85
• IsMaximizable setting isn't respected (#8666), similarity score: 0.82
• Cannot maximize vertically when ExtendsContentIntoTitleBar = true (#8966), similarity score: 0.81

Closed similar issues:

• OverlappedPresenter.IsMaximizable Does Not Work As Expected With ExtendsContentIntoTitleBar (#8783), similarity score: 0.85

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[efreykongcn]

Close this one since it's duplicated to #9427 and #8666