It's C++/CX. For an example of OS code that uses C++/WinRT, check out the native UI controls library, WinUI: https://github.com/Microsoft/microsoft-ui-xaml htt

It's C++/CX. For an example of OS code that uses C++/WinRT, check out the native UI controls library, WinUI: https://github.com/Microsoft/microsoft-ui-xaml https://github.com/Microsoft/microsoft-ui-xaml