Platform for Metro Style Apps Michael Platt Senior Director Microsoft Corp

Windows 7 As of //build 2011  450,000,000 copies of Windows 7 sold  Internet Explorer 9 is the fastest growing Windows 7 browser  542,000,000, people signing into Windows Live services

Changing world of computing As of //build 2011  Form factors and user interactions models create new scenarios and opportunities  Mobility means devices you use while carrying, not just devices you carry  App developers want rich connectivity and sharing capabilities, connection to customers  Services are intrinsic in all software

Windows 8  Makes Windows 7 even better Everything that runs on Windows 7 still runs on Windows 8  Reimagines Windows from chipset to experience New range of capabilities, scenarios and form factors

demo

Platform Investments

Key Investments New Windows Runtime (WinRT) APIsNew App Execution EnvironmentNew Windows 8 User ExperienceWindows Store

Windows 8 Platform Metro style Apps HTML JavaScript C C++ C# VB Desktop Apps Win32.NET / SL Internet Explorer Communication & Data Application Model Devices & Printing WinRT APIs Graphics & Media System Services JavaScript (Chakra) C C++ C# VB XAMLHTML / CSS View Model Controller Windows Core OS Services Core

demo Hello WinRT in C++

What Did We See…  WinRT APIs are native  XAML used from C++  Portable C++ code

Surface of WinRT APIs

Metro Style Application APIs Fundamentals Application ServicesThreading/TimersMemory ManagementAuthenticationCryptographyGlobalization Devices GeolocationPortableSensorsNFC User Interface SVGTilesInputAccessibilityPrinting HTML5/CSSXAMLDirectXControlsData Binding Communications & Data Memory Management XMLNetworkingSMS NotificationsStreams ContractsLocal & Cloud StorageWeb Media PlaybackCapturePlayToVisual Effects

demo

What Did We See…  WinRT APIs are asychronous  WinRT APIs provide rich access to device, OS and services  WinRT APIs feel natural in C#, Javascript and C++

Language projections Windows Runtime Object (or Component) Written in C++, C#, VB Windows Metadata C++ App Projection CLR C#/VB App Projection HTML App Chakra Projection

What Did We See feel natural in C# provide rich access to device, OS and services are asynchronous WinRT APIs

User Experience

Metro style apps Metro style designFast and fluidSnap and scale beautifullyUse the right contractsInvest in a great TileFeel connected and aliveRoam the cloudEmbrace Metro principles

Traits of a Metro Style App Metro style designFast and fluidSnap and scale beautifullyUse the right contractsInvest in a great TileFeel connected and aliveRoam the cloudEmbrace Metro principles Metro style designFast and fluid Snap and scale beautifully Use the right contracts Invest in a great Tile Feel connected and alive Roam the cloud Embrace Metro principles

Windows Store

demo Windows Store

The Windows Store (More Later Today)  Designed for discovery  Unprecedented reach  Flexible business models  Best economics

App Execution Environment

Metro Style App Acquisition Windows Store backend Package Manager Windows Store install Execution Engine Extension Handler stage Single instance store register Registration Information

Building Blocks of an App Package  App Manifest contains all information needed to deploy the app  Blockmap contains hashes of all files within the app package  Signature validates the integrity of the app package AppXManifest.xml BlockMap Signature Zip Central Directory Files / Assets.appx package

App Manifest and Capabilities  Explicitly declares the app integration endpoints  File capabilities (music/pictures/videos/documents libraries, removable storage)  Devices (webcam, microphone, location, sms, proximity); extensible to new device classes  Network and identity (internet, private network, credentials)  File type associations  App contracts (search, share, etc.)  Contained in appxmanifest.xml; Visual Studio provides editor

demo Capabilities

Process State Transitions Running App Suspended App Terminated App

Process Isolation OS User dataDevicesCommunicationsHandlersTilesCryptography…… Process1 Local context Web context AppData LocalTempRoaming Process2 Local context Web context AppData LocalTempRoaming

App Data vs. User Data User data DocumentsPhotos MusicVideos App data SettingsFiles Session StateLocal Cache

Roaming App uses data normally Data syncs for the user’s Microsoft account Local Storage

demo WinRT from JavaScript Accessing files

Recap on App Execution  Confidence  Capabilities driven  High isolation  Connected  Seamless data access  Data Roaming  Powerful  Performance  Integrates natively with the platform

Recap App Execution Connected Seamless data access Data Roaming Powerful Performant Native platform Confident Capabilities driven High isolation

Recap Programming language choice Best of breed tools Monetization Windows 8 platform reimagined for developers Amazing User Experiences Great Performance End-user confidence Windows 8 reimagined for end-users

Recap  Windows 8 reimagined for end-users  Amazing User Experiences  Great Performance  End-user confidence  Windows 8 platform reimagined for developers  Programming language choice  Best of breed tools  Monetization

Windows reimagined For consumers, for developers

In-Box Controls for Metro Style Apps Button CheckboxRadio Button HyperlinkCombo Box Context MenuFlyout List BoxFlip View App Bar Panning Indicator Grid View List ViewSemantic Zoom Text Box Progress RingProgress Bar Clear ButtonSpell Checking Password Reveal Button RatingRadio Button Scroll Bar Toggle SwitchTooltip