Platform for Metro Style
Apps

Agenda

Introduction to Windows 8
Experience

Introduction to Windows Run-time

Store & developer
opportunity

You’ll leave understanding:

The Windows 8 Platform investments

Windows 7

As of //build 2011



450,000,000 copies of Windows 7 sold



Windows 7 consumer usage greater than XP



Internet Explorer 9 is the fastest growing
Windows 7 browser



542,000,000 people signing into Windows Live
services

Changing world of computing



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 reimagined

New fast
and fluid
Start screen

Everything great about
Windows 7 we made
even better

Touch,
mouse,
keyboard

Great experience across all
hardware

Tablets to
laptops to
all-in-ones

Highest
power to
the most
efficient
chipset

Touch,
mouse,
keyboard

Windows 8 reimagined

demo

Windows 8 Experience



Fast and fluid user experience

Responsive, alive, beautiful



Immersive and full-screen

Focuses attention on your apps



Touch-first with full keyboard and mouse

Enables your choice of interaction



Web of apps working together

Apps are connected to each other and the cloud



Experience for all PC devices and architectures



No compromise across new form factors, desktops and laptops

Platform Investments

Key Investments

New Windows Runtime (WinRT)

New App Execution Environment

New Windows 8 User Experience

Windows Store

Windows Run-time (WinRT)

Windows 8 Platform

Metro style Apps

HTML

JavaScri

pt

C

C++

C#

VB

Desktop Apps

Win3

2

.

NET

/ SL

Internet

Explore

r

Communicatio

n

& Data

Application Model

Devices &

Printing

WinRT APIs

Graphics &

Media

S

y

st

e

m

S

e

rv

ic

e

s

JavaScript

(Chakra)

C

C++

C#

VB

XAML

HTML / CSS

V

ie

w

M

o

d

e

l

C

o

n

tr

o

lle

r

Windows Core OS Services

C

o

re

demo

Hello WinRT in C++

What did we see…



WinRT APIs are native



XAML used from C++



Portable C++ code

Metro style application APIs

Fundamentals

Application

Services

Threading/Timers

Memory

Management

Authentication

Cryptography

Globalization

Devices

Geolocation

Portable

Sensors

NFC

User Interface

SVG

Tiles

Input

Accessibility

Printing

HTML5/CSS

XAML

DirectX

Controls

Data Binding

Communications & Data

Memory

Management

XML

Networking

SMS

Notifications

Streams

Contracts

Local & Cloud Storage

Web

Media

Playback

Capture

PlayTo

Visual Effects

WinRT in C#

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++

The C# code you have to write

today…

[

DllImport

(

"avicap32.dll"

,

EntryPoint=

"capCreateCaptureWindow"

)]

static extern int

capCreateCaptureWindow(

string

lpszWindowName,

int

dwStyle,

int

X,

int

Y,

int

nWidth,

int

nHeight,

int

hwndParent,

int

nID);

[

DllImport

(

"avicap32.dll"

)]

static extern bool

capGetDriverDescription(

int

wDriverIndex,

[

MarshalAs

(

UnmanagedType

.LPTStr)]

ref string

lpszName,

int

cbName,

[

MarshalAs

(

UnmanagedType

.LPTStr)]

ref string

lpszVer,

int

cbVer);

// more and more of the same

The C# code you get to write on

Windows 8

using

Windows.Media.Capture;

var

ui =

new

CameraCaptureUI

();

ui.PhotoSettings.CroppedAspectRatio =

new

Size

(4, 3);

var

file =

await

ui.CaptureFileAsync(

CameraCaptureUIMode

.Photo);

if

(file != null)

{

var

bitmap =

new

BitmapImage

() ;

bitmap.SetSource(

await

file.OpenAsync(

FileAccessMode

.Read));

Photo.Source = bitmap;

}

Language projections

Windows
Runtime

Object

(or Component)

Written

in C++, C#, VB

Windows

Metadata

C++ App

P

ro

je

c

ti

o

n

C

LR

C#/VB App

P

ro

je

c

ti

o

n

HTML App

C

h

a

kr

a

P

ro

je

c

ti

o

n

App Execution Environment

Metro style app acquisition

Windows

Store

backend

Package

Manager

Windows

Store

install

Execution

Engine

Extensio

n

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.xm

l

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 Isolation

OS

User data

Devices

Communications

Handlers

Tiles

Cryptography

…

…

B

ro

ke

r

s

Process1

Local context

Web

context

AppData

Local

Temp

Roaming

Contracts

Process2

Local context

Web

context

AppData

Local

Temp

Roaming

D

ire

ct

A

P

Is

Process state transitions

Running

App

Suspende

d

App

suspending

Terminate

d

App

Low

Resources

Code gets to run

No code

runs

App not running

resuming

App gets 5s to

handle suspend

App is not

notified before

termination

Apps are notified

when they have

been resumed

User

Launch

es App

Splash
screen

App data vs. User data

User data

Documents

Photos

Music

Videos

App data

Settings

Files

Session

State

Local

Cache

Roaming

App uses data normally

Data syncs

for the user’s

Microsoft

account

Local

Storage

Windows Store

Unprecedented Reach

Optimized for Discoverability

Transparent Approval Process

Flexible Business Models

Maximizing Developer Revenue

The Windows Store

(more

later)

Hello World in C++/C#/JavaScript

Lab 1

Recap

Windows reimagined

A new Metro style UI where touch is a first-

class citizen along with full mouse-and-

keyboard support

New development models built on WinRT,

including native support for HTML/CSS/JS,

C#/XAML, C++/DirectX

Designed from the chipset up for multiple

form-factors – tablets, laptops, desktops & all-

in-ones

The Windows Store on every device with
a full commerce platform and flexibility