Return GetAppWindowFromWindowHandle(window.Handle) Public static AppWindow GetAppWindowForWinForms( this Form window) Return GetAppWindowFromWindowHandle(hwnd) Var hwnd = new WindowInteropHelper(window).EnsureHandle() Public static AppWindow GetAppWindowForWPF( this Window window) Return GetAppWindowFromWindowHandle(windowHandle) Public static AppWindow GetAppWindowForWinUI( this Microsoft.UI.Xaml.Window window) Here’s a set of extension methods that can be used to get the AppWindow instance for WinUI, WPF and WinForms. It would be nice if a future iteration of the Windows App Sdk could make this consistent and avoid the need for developers to have to retrieve the Hwnd (seriously, why is this even still a thing?) Unfortunately this varies depending on what type of application you’re building. The next thing you’ll need is an AppWindow instance. To get started with the Windows App Sdk, you need your application to reference the Windows App Sdk – this could start with a new WinUI based application using the Visual Studio templates, or you could add a reference to your existing Win32 application. Let’s get into it and walk through some of the apis that are part of the windowing support in the Windows App Sdk. There are no apis for managing multiple windows the apis focus on resizing/repositioning and adjusting the visual style of an individual window. One thing to note about the window apis that have been included in the first version of the Windows App Sdk is that they’ve all oriented around an individual window. In this post we’re going to look at what the Windows App Sdk brings to the table in terms of window management.
If you take this approach when building desktop apps, you end up producing some truly unremarkable interfaces, such as those sported by virtually every messaging platform because they’ve apparently forgotten they can launch additional windows. On a mobile device, your app typically runs full screen, or perhaps split screen on some devices, so you never need to worry too much about the window of the application. One of the more significant differences between building apps for mobile devices, such as iOS and Android, and desktop pcs (Windows or Mac) is the concept of windows. Code sample for this post is on GitHub: AppWindowSample
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