Hi,
I observed that system shows touch point trace (see attached picture below) on most UI elements. However, ScrollViewer eats touch event and no touch trace will show on the screen. I want an UI element can eats touch and not display touch trace like ScrollViewer.
I tried to handle pointer events and set handled flag to true, but didn't work. Is there any way to do that?
I want to do this because ScrollViewer has a very good response time. Use touch to scroll items inside ScrollViewer, you can see them follow the finger very closely. However, when I tried to move a rectangle horizontally by handling PointerMove event, the
rectangle is a little bit far away from my finger. So I want to do a little test to figure if disabling touch event delivery can get better performance.
Thanks.

This is touch point trace on most UI elements.