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c#windows-runtimewindows-store-appswindows-storewin-universal-app

The `#if WINDOWS_APP` directive never runs in a Universal Windows App solution

in a my old Windows App solution I have now added the support for Windows Phone (by VS Express 2013 Update 3) but into the Shared project the blocks #if WINDOWS_APP never run: the WINDOWS_APP directive is not recognized but WINDOWS_PHONE_APP works correctly. I must use #if !WINDOWS_PHONE_APP instead of WINDOWS_APP ... why? how can I use WINDOWS_APP in this solution?

Thanks.

Solution

  • In the Project Properties (Windows8.1 project) the "Conditional compilation symbols" box did not contain the WINDOWS_APP string.

    Now I have added WINDOWS_APP for all kinds of configuration so that the box contains in each case exactly:

    NETFX_CORE;WINDOWS_APP

    and so everything works perfectly!