Windows App SDK support for C++/CX projects

[Scottj1s]

The Windows App SDK supports C# and ISO C++ projects. Based on customer demand, support for these languages is regularly tested and maintained. Combining the Windows App SDK package with languages other than C# and ISO C++ is not prohibited, but results may vary. For example, because C++/CX has been superseded by ISO C++ and C++/WinRT, the Windows App SDK does not actively support C++/CX. There are a few known issues using the Windows App SDK in C++/CX projects, described below. Users are invited to post any additional recommendations in the comments.

Known Issues with C++/CX projects:

• UndockedRegFreeWinRT-AutoInitializer.cpp does not compile (issue 2848)
  Workaround: Add this to the project file:
  <WindowsAppSdkUndockedRegFreeWinRTInitialize>false</WindowsAppSdkUndockedRegFreeWinRTInitialize>

• Use of some Windows App SDK types causes compiler warning C4691
  Workaround: Suppress/disable warning 4691 at the project or source code level