The three different APIs for using Touch in Windows* Desktop are: WM_GESTURE, WM_TOUCH, and WM_POINTER. They are all different, each with its own advantages and disadvantages. WM_POINTER is the most recent API, but it only works with Windows 8. WM_GESTURE and WM_TOUCH were both introduced with Windows 7 and maintain compatibility in Windows 8. Because backwards compatibility is so important to game developers, we expect most developers will opt to go for one of these two APIs.
Intel® Perceptual Computing SDK
The Intel® Perceptual Computing SDK is a library of pattern detection and recognition algorithm implementations exposed through standardized interfaces. The SDK provides a suite of face analysis algorithms including face location detection, landmark detection, face recognition and face attribute detection.
This tutorial shows how to use the SDK for face location detection, landmark detection, and how to write an application for these face analysis modules.