Enlarge Stroke.hittest area

The hittest area on a stroke is tiny. Even if you make the stroke width larger, the hittest stays the same. My idea is when you draw a stroke, draw a thick polyline beneath it. The polyline can then act as the hittest area. But the problem is, when I move the polyline around with mousecapture, how I can signal the Stroke to move around to?

All I want is to signal the mousecoordinates to the stroke when I release the polyline from mousecapture so I can redraw 开发者_如何学编程the stroke at the coordinates.

I've tried inheriting the classes to add a new property, ID (so each stroke+polyline has the same id), but I cannot inherit because these are sealed classes.

Any ideas?

P.S. My ultimate goal is for the user to be able to move a Stroke around with the mouse one way or the other.

You could use the Polylines Tag property by setting it with the matching Stroke, and be careful that the tag is not used for anything else.