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C++ in Windows Phone Apps
Mirco Vanini
Microsoft® MVP Windows Embedded

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 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)
Agenda

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The New Old Platform

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 Can be used in any Windows Phone App
 Visual Studio Express 2012/3 for Windows Phone
 Same C++ compiler & CRT used in Windows 8
 Subset of C++ 11 standard features
How: Windows Phone C++ Support

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Sampling of C++ 11 Standard Features
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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 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
Where you can use C++

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 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++
Why use C++

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 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
Windows Phone Runtime
Infrastructure:
• Core plumbing
• Commontypesystem
• Standard programming model
APIs:
• Windows Phone Platform APIs
• Libraries you write and license
• Projected to C++ and C# / VB

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A Closer Look at What's Available
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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Welcome back to C++!
Recap

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Q&A

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Contact
feedback
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Blog http://mircovanini.blogspot.com
Email info@proxsoft.it
Web www.proxsoft.it
Twitter@MircoVanini