Question:Why not just use Microsoft.UI.Windowing.Window as the top-level window of the WinUI 3 Window class?

[Gaoyifei1011]

Question:Why not just use Microsoft.UI.Windowing.Window as the top-level window of the WinUI 3 Window class?

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问题：为什么不直接使用 Microsoft.UI.Windowing.Window 作为 WinUI 3 Window 类的顶层窗口？

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At present, the top-level window class name of the Window window under the WinUI 3 desktop app is WinUIDesktopWin32WindowClass, and the top-level window class name created by the AppWindow class is
Microsoft.UI.Windowing.Window, so why doesn't WinUI 3 desktop version directly use AppWindow create a top-level window instead of creating a separate top-level window?

目前 WinUI 3 桌面应用下的 Window 窗口的顶层窗口类名是 WinUIDesktopWin32WindowClass，而 AppWindow 类创建的顶层窗口类名是 Microsoft.UI.Windowing.Window，所以 WinUI 3 桌面版为什么不直接使用 AppWindow 创建的顶层窗口而是单独创建一个顶层窗口？

[DarranRowe]

As a complete guess, it could simplify the implementation for Islands. The only real difference would then have to be how the parent interacts with the window which contains the WinUI content.