Most Windows Runtime APIs are now available for Windows Phone Store apps, as well as Windows Store apps, which means you can share more code when you create apps that target both Windows and Windows Phone devices. In addition to Windows Runtime APIs, additional APIs are also available based on the language and UI framework you choose to use for your Store app.
Listed below are the APIs supported for each type of Store app. If you're new to Store apps, see What's a Store app? for a brief intro.
For C#/Visual Basic and XAML, use:
For C++ and DirectX, use: