How to pinch in WPF

Question

I am trying to control multi-touch. So, I am trying to separate touch behavior. Suppose a person wants to enlarge their photo, they need to pinch to enlarge it. However, two fingers that have two points of contact, so that the distance will not increase, as shown in the figure below:

How can I separate this. Is there any function for this?

Regards, C.Porawat

Answer 1

Is it about distinguishing one-handed or two-handed scaling manipulation, or about imposing certain minimum / maximum scaling factors for managed objects?

(). , , . , .

, , . ManipulationDelta, (, , / ) DeltaManipulation.Scale, ( , , , ?), / .

, , - UIElement , .