A quick overview about the C++ support on a Windows Phone SDK with a particular focus about the reuse of LOB (Line Of Business) C++ code

1. www.italiancpp.org
C++ in Windows Phone
Apps
Mirco Vanini – Microsoft MVP Windows Embedded

2. Italian C++ Community
Agenda
The New Old Platform
How & where C++ is supported
When and why to use C++
Introduction to the Windows (Phone) Runtime
Sharing C++ code (demo)
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The New Old Platform
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How: Windows Phone C++ Support
Can be used in any Windows Phone App
Visual Studio Express 2012/3/(5) for Windows Phone
Same C++ compiler & CRT used in Windows 8
Subset of C++ 11 standard features
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Sampling of C++ 11 Standard Features
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RValue references Forward declared enums Bidirectional fences
static_assert Alignment Data-dependency ordering
Auto Standard-layout and trivial types exception_ptr
Trailing return types Extended friend declarations Thread-local storage
Lambdas Local and unnamed types as template arguments __func__
Decltype Range-based for-loop C99 preprocessor
Right angle brackets override and final long long
extern templates Minimal GC support Strongly typed enums
nullptr Atomics
C++11 Features in Visual C++ 11
Announcing the Visual C++ Compiler November 2013

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Why use C++
Reusability: You have some legacy code around that you really don't
want to rewrite but still use in your app
Portability: You want to use the code you're about to write on
multiple platforms
Performance: You really are in need for these last bits of
performance benefits and know what you're doing
Personal Preference: You are a developer who really favors C++ over
e.g. C# or you have significantly better skills in C++
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7. Italian C++ Community
Where you can use C++
All Windows Phone 8 apps can use native code…
◦ XAML apps (8.1)
◦ XAML apps mixed with D3D and WinRT
◦ Pure native D3D apps/games
◦ C++ libraries: Dynamic Link Libraries, Static Libs
◦ WinRT C++ Components
...not all apps need to use native code
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WP 7.0
Silverlight
WP 7.5
Silverlight
WP 8.0
Silverlight
WP 8.1
Silverlight
WP 8.1
WinRT

8. Italian C++ Community
Why stay on Windows Phone Silverlight?
Existing Code Investment
Existing Install Base
Not yet converged
◦ Camera Lenses
◦ VoIP
◦ Lock Screen Wallpaper.
◦ Clipboard API
◦ Simple Sound Effects (XNA)
◦ Run Under Lock Screen
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Why Retarget to Windows Phone Silverlight 8.1?
Access to SD Cards
Geofencing
App to App SSO (Single Sign-On)
App to App sharing
And much more…
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Windows Phone Runtime
Why learn about WinRT?
◦ WinRT is used in the application model
◦ C++ code called from XAML uses WinRT
◦ Phone Platform APIs are built using WinRT
◦ More Convergence
◦ Latest Tooling
◦ New Controls
◦ Future Investment
◦ Same ECMA-335 standard as .NET
◦ Type-System Projections
◦ CLR Projection
◦ Framework Projection
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11. Italian C++ Community
A Closer Look at What's Available
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Direct3D with XAML" C++ application actually creates a C# main
project and a separate Windows Runtime Component in C++.

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Sharing C++ code
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Recap / Q&A
Welcome back to C++!
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Contact
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Blog http://mircovanini.blogspot.com
Email info@proxsoft.it
Web www.proxsoft.it
Twitter@MircoVanini