Satyendra's Blog

Here i will be discussing about the technologies I am working with and interested in…

Windows 7 Features – Multitouch

on July 28, 2009

For close to two decades now, the design of applications has changed surprisingly. But at their core each application waits for users to generate input, and they respond — a server/client model of processing on a very local scale. Multitouch is a somewhat simpler version of solving the bigger problem of ascertaining meaning through input, because now that Windows apps will begin being able to process input coming from two or more points on the screen at once, the relationships between those multiple points will need to be analyzed. For example, when a program receives a series of signals that appear to show multiple points, arranged in a generally vertical pattern, moving slowly and then very quickly to the right that could mean the user wants to “wipe the slate clean?” or “Start over?” or “Clear screen?” .

Throughout the history of Windows, the evolution of application architecture has typically taken place in either of two ways: Either Microsoft improves some underlying facet of the operating system, which leads to an improvement or Microsoft implements a change which developers have to seize upon later in order for users to see the benefits down the road. This was what happened when the security of the system kernel in Windows Vista was enhanced. Similar case was their when Windows Presentation Foundation (WPF) was introduced after Windows XP.

Windows Touch is an expansion of WPF to multiple inputs having a collective meaning. For e.g. using two fingers to stretch or shrink a photograph is one example, minimizing the workspace etc. This involves the application’s ability to register the multiple inputs, and then ascertain what the user’s intent must be based on the geometry that WPF has returned.

A great move by Microsoft towards natural interfaces !!!

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