WPF multi-touch Development: Advanced Touch-screen operations (manipulation)

In the previous article we have a preliminary understanding of the basic touch operation, this article will continue with the advanced operation of Touch Control (Manipulatioin), which includes some special touch gestures in the advanced operations: panning, zooming, rotating, of course, without developing these gestures in WPF, just the UI The Ismanipulationenabled property of the control activates and completes various touchscreen gesture operations through the following four events: Manipulationstarting, manipulationstarted, Manipulationdelta, Manipulationinertiastarting, manipulationcompleted, the following figure is the sequence of work between the events and relationships.