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Multi-Touch on Microsoft Surface and

Windows 7 for .NET Developers

CL27

Robert LevyProgram ManagerSurface

Anson TsaoLead Program ManagerWPF

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Agenda

> Introduction> Multi-touch in WPF 4 & SL 3

> Raw Input APIs> Manipulation/Inertia APIs> Controls

> Microsoft Surface: Beyond Touch> Controls> Unique capabilities

> Roadmap for platform alignment> Obligatory slides> Q&A

Multi-Touch…

> …creates new opportunities.> Software that is intuitive for users to walk up & master> Software that is collaborative with multiple users

> …is not new.> Researchers have been exploring this stuff for decades

> …is now going mainstream.1. Hardware: Robust touch-capable hardware from

Microsoft and OEMs 1. Dozens of Win7 touch devices now available

2. OS: Windows 7 has great touch support baked in3. SDKs: Microsoft is making touch easy to leverage4. You: Developers & designers creating innovative apps

that take advantage of the technology

Microsoft Surface & WPF

> With Surface, Microsoft became a thought leader in the multi-touch arena

> Surface has been shipping a multi-touch dev platform for several years> Built as a set of extensions to WPF 3.5

> Touch APIs from Surface are being baked into WPF 4 for cross-platform use

WPF 4 Touch Capabilities

Anson Tsao

WPF 4 Multi-Touch APIs Overview

WPF Controls Styles with Panning Enabled

ScrollViewer Panning Support

Manipulation Events

Touch Events

Extensible Touch Device

Win7 Touch Device

Surface Touch Device

Beta 1

Beta 2

Release Candidat

e

Surface V2

Raw Multi-Touch Events

demo

Multi-Touch on the Web with Silverlight

> Subset of the WPF4 touch input APIs> Reports groups of touch events in

“frames”> Apps are responsible for hit testing and

event routing

> Manipulation & Inertia Processor API will be available on surface.com> Same algorithms used by Surface, WPF, &

Win7

Silverlight 3 Touch APIs - Listening

public partial class MainPage : UserControl { public MainPage() { ... // listen to touch events from the system Touch.FrameReported += new TouchFrameEventHandler(OnFrame); }

void OnFrame(object sender, TouchFrameEventArgs e) { // enumerate and respond to touch events }}

Silverlight 3 Touch APIs - Processingvoid Touch_FrameReported(object sender, TouchFrameEventArgs e) { TouchPointCollection touchPoints = e.GetTouchPoints(LayoutRoot);

foreach (TouchPoint tp in touchPoints) { if (tp.Action == TouchAction.Down) { // a new touch has come down } if (tp.Action == TouchAction.Move) { // a previously down touch has moved } if (tp.Action == TouchAction.Up) { // a touch has been removed } }}

Multi-Touch Manipulations

demo

Manipulation Container

Canvas

Manipulation Container

IsManipulationEnabled=true

IsManipulationEnabled=true

Update RenderTranform

Handle ManipulationDelta

Event• Coordinates relative

to Manipulation Container

Handle ManipulationStarting

Event• Set Manipulation

Container

Manipulation Events

Starting Started Delta Inertia Starting Delta Complete

d

StartInertia() StartInertia()

Touch Down

(Initial)

Touch Move

Touch Up (All)

Initialize:• Mode• Container• Pivot

Completed()

Manipulation Inertia

demo

Inertia BehaviorsManipulationInertiaStartingEventArgs

Properties Units

TranslationBehavior InitialVelocity 1/96th DIP per millisec

DesiredDeceleration 1/96th DIP per millisec^2

DesiredDisplacement 1/96th DIP

RotationBehavior InitialVelocity Degrees per millisec

DesiredDeceleration Decrees per millisec^2

DesiredRotation Degrees

ExpansionBehavior InitialVelocity 1/96th DIP per millisec

InitialRadius 1/96th DIP

DesiredDeceleration 1/96th DIP per millisec^2

DesiredExpansion 1/96th DIPS

• Deceleration and Displacement/Rotation/Expansion mutually exclusive• Deceleration – useful to simulate friction• Displacement – useful on page flips• Default – no inertial movements

Touch Panning Demo

demo

>>FUTURE

Touch Panning Support

> In WPF4 Release Candidate Builds (not Beta2)

> Cancel() method on manipulation events> Cancelled manipulation promoted to mouse

> ScrollViewer handles manipulations> PanningMode

> None, Both, Horizontal/VerticalOnly, Horizontal/VerticalFirst> PanningDeceleration> PanningRatio

> Styling changes to intrinsic controls

Microsoft Surface’s Extensions of WPF

Robert Levy

Surface WPF controls make touch UI easy

> Designed for multi-touch

> Designed for simultaneous use

> Designed for manipulations & inertia

Drawing with Surface Controls

<s:SurfaceInkCanvas/>

Manipulating Photos with Surface Controls

<s:ScatterView Name=“scatter"> <s:ScatterView.ItemTemplate> <DataTemplate> <Image Source="{Binding}"/> </DataTemplate> </s:ScatterView.ItemTemplate></s:ScatterView>

scatter.ItemsSource = Directory.GetFiles(…);

Inking on Photos with Surface Controls

<s:SurfaceScrollViewer> <s:ScatterView Name=“scatter"> <s:ScatterView.ItemTemplate> <DataTemplate> <Grid> <Image Source="{Binding}"/> <Viewbox Margin="50"> <s:SurfaceInkCanvas/> </Viewbox> </Grid> </DataTemplate> </s:ScatterView.ItemTemplate> </s:ScatterView></s:SurfaceScrollViewer>

scatter.ItemsSource = Directory.GetFiles(…);

Inkable Photos on Surface

demo

Surface Toolkit for Windows Touch

Controls, samples, templates, and docs

Coming shortly after the WPF4 launch

announcing

Surface SDK Features for Multi-Touch> Common controls optimized for Multi-Touch

> Controls design primarily for Multi-Touch

> Essential Multi-Touch UX Functionality

SurfaceWindow SurfaceButton SurfaceSlider SurfaceScrollViewer SurfaceInkCanvas

SurfaceCheckBox SurfaceRadioButton SurfaceListBox SurfaceListBoxItem

SurfaceThumb SurfaceScrollBar SurfaceRepeatButton SurfaceToggleButton

ScatterView ScatterViewItem

LibraryContainer LibraryBar LibraryStack

LibraryBarItemLibraryStackItem

Rich async drag & drop Input visualizations

Inkable Photos on Windows 7

demo

Surface is not just multi-touch

> Windows 7 & WPF 4 are a great baseline for touch

> Surface creates unique opportunities with specialized HW> Robust top> Horizontal form factor> Infrared camera array

Surface: Beyond Multi-Touch

> Massive multi-touch

> Multi-user experiences

> Object recognition

> Optical engineering

Surface: Multi-User

> Trend: Software continues to reduce the need for face-to-face human interactions

> Problem: Happiness and creativity depend on social interactions

> Surface brings people together> Industrial design encourages users to gather> Input capabilities allow simultaneous use> Apps facilitate collaboration / competition

Surface: Massive Multi-Touch

> Surface can efficiently track 50+ simultaneous fingers and objects

Surface: Objects

> Uniquely identify & react to billions of tagged objects

Byte Tags256 unique values

Identity Tags>340,282,366,920,938,000,000,000,000,000,000,000,000

unique values

> Tags include orientation indictors dots

Surface: Optics

> Determine the size and shape of every input

> See into and project onto physical objects

Optical Magic with Surface

demosurface.com/monster

Optical Magic with Surface

demoBehind the scenes video at: surface.com/monster

Surface Application Showcase

video

Surface Application Showcase

video

>>FUTURESurface vNext Integration & Extension of

WPF 4> All input is routed through the WPF InputManager

> Surface input provider can send to multiple windows

> Surface extension methods provide access to additional input data (tag values, orientation, shape, etc)

WPF InputManager

Surface input

provider

Windows Touch input

providerApps

& Controls

Manipulation & Touch Events

Surface extension methods

Getting Surface Data from WPF Extensions

void OnTouchDown( object sender, TouchEventArgs e ){ // built in to WPF point p = e.Touch.GetPosition(this);

// calling Surface extension directly TagData t1 = Microsoft.Surface.TouchExtensions.GetTagData(e.Touch);

// calling Surface extension w/ C# magic TagData t2 = e.Touch.GetTagData();

// some other Surface extensions double o = e.Touch.GetOrientation(this); Ellipse e = e.Touch.GetEllipse(this);}

Surface HardwareWindows

Vista

Windows 7

NativeWin32

Application

Managed Wrapper and Interop

Touch Development Roadmap

WinForms Application

Windows 7 (2009)

Multi-Touch Controls

Multi-Touch API

WPF 3.5 SP1

WPF Application

Surface SDK1.0

Multi-Touch Controls &

API

Surface Application

>>FUTURE

Surface HardwareWindows

Vista

Windows 7

NativeWin32

Application

Touch Development Roadmap

WPF 3.5 SP1

Surface SDK1.0

Managed Wrapper and

Interop

WinForms Application

.NET 4.0 & Surface Toolkit (Q1 2010)

WPF 4.0 w/ Multi Touch APIs

Multi-Touch Controls

Surface Multi-Touch

Controls &API

Multi-Touch API

Surface Toolkit for Windows

Touch

Multi-Touch Controls &

API

WPF Application

Surface Application

>>FUTURE

Surface HardwareWindows 7

Windows 7

NativeWin32

Application

Touch Development Roadmap

Managed Wrapper and

Interop WPF 4.0 w/ Multi Touch APIs

Surface Toolkit for Windows Touch

Surface SDKvNext

WinForms Application

Surface vNext (Future)

Multi-Touch Controls

Surface Multi-Touch

Controls &API

Multi-Touch API

Surface-specific

Controls & API

WPF Application

Surface Application

>>FUTURE

What’s next for Surface hardware?

>Things we’re exploring:>Cheaper >Thinner>Vertical

>Stay tuned…

Call to Action

> Windows 7> Download Silverlight 3 RTM or Silverlight 4 Beta 1> Download Visual Studio 2010 Beta 2 w/ WPF 4.0

> Surface

> By Invitation Only: http://community.surface.com

1. Get the Surface SDK & Simulator2. Check out the samples, docs, and templates3. Browse and participate in the online forums

Purchase Surface hardware from Surface.com (starting at $12,500)

SDK & resources now available free to everyone! Integrated with TechNet & MSDN for downloads, online docs, and forums.

Start at our portal: http://surface.com/developer

NEW!

Related Resources

> Windows Touch Deep Dive (Session CL17)

> WPF 4 Resources: http://connect.microsoft.com/wpf

> Surface Resources: http://surface.com

> Infragistics.com – free controls for Surface v1!> Map, Chart, and Carousel > CTP now available

> NSquaredSolutions.com/SurfaceBook> Coming soon!

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