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The Windows® 7 Developer Experience (mt)

Microsoft® Corporation

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Windows 7 Multi-Touch

the future is Here!

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The past drives the future .

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Input Devices

How many people here use a mouse?When was it invented?

1963 !!! by Douglas Englebart

When was it first (widely) used?Mid 90’sWhile Xerox put out a computer with a mouse in 1982 and others slowly followed, it was not until the MID 90’s that mice were widely used on the computer (30 YEARS!!!)

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Input Devices

How many people here use a touch screen?When was it invented?

1972 !!! The PLATO IV (Research Scientists At University of Illinois)

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Multi-touch through the years1985: Sensor Frame  (Carnegie

Mellon University)

1992: Flip Keyboard

1995/97: Active Desk

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Multi-touch through the years

2005: PlayAnywhere

2007: Microsoft Surface Computing

1999: Portfolio Wall

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Gestures1983: Video Place / Video Desk (Myron Krueger) Essentially “wrote the book” in terms of unencumbered (i.e., no gloves, mice, styli, etc.) rich gestural interaction.

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Touch History1985: Multi-Touch Tablet (Input Research Group, University of Toronto): (Alias|Wavefront, Toronto On, Canada)

About the same time the mac came out

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Touch Phones

2006: Synaptics & Pilotfish (San Jose) http://www.synaptics.com

2007: Apple iPhone 1992:  Simon (IBM & Bell South) The first touch phone

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“So how can I play with this now??”

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3 things to know….

the screensthe hardware

the software

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The Screens

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How to touch Resistive Think Push Down and drag

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How to touch

Capacitive Think Electric Impulse

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How to touch

Infrared Think laser pointer(s)

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The Hardware

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Hardware

CapacitiveHP Touchsmart tx2N-trig (2-10)

InfraredHP Touchsmart IQ816NewWindow(2)

CapacitiveDell LatitudeXT2N-Trig (2-10)

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The Software

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Multi-Touch Development TiersGood – Better – BestWindows application can target one of three

levels of touch integrationGood: No specific touch APIs are used but the application UI is appropriately sized and works well with the built-in gestures

Better: The gesture APIs are supported to give smooth natural interactions

Best: Deep touch-focused experiences designed to take advantage of multi-touch features

Best

Better

Good

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WM_Touch – WM_Gesture

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PC’s, Form Factors, Technology

Easy to Write code now

WM_Touch

Windows7.Multitouch

Windows7.Multitouch.WPF

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Massive Multi-touch, Multi-user

PC’s, Form Factors, Technology

Easier to Write code soon

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// Private data members private int x; // touch x client coordinate in pixels private int y; // touch y client coordinate in pixels private int id; // contact ID private int mask; // mask which fields in the structure are valid private int flags; // flags private int time; // touch event time private int contactX; // x size of the contact area in pixels private int contactY; // y size of the contact area in pixels

protected event EventHandler<WMTouchEventArgs> Touchdown; // touch down event handler protected event EventHandler<WMTouchEventArgs> Touchup; // touch up event handler protected event EventHandler<WMTouchEventArgs> TouchMove; // touch move event handler

The API

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Working with MultiTouch

demo

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More Information

Multi-Touch Systems that I Have Known and Loved

http://www.billbuxton.com/multitouchOverview.htmlMike Taulty’s Blog http://bit.ly/NKVTN Example Photo App http://bit.ly/d4eE9

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Multi-touch is not new

Past Future(http://bit.ly/akq7V)

Present

1972: PLATO IV Touch Screen Terminal Windows 7 Multi-

touchTouchable Hologram

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The End

(or a new beginning)

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