Windows Phone 7 - Silverlight - Touch Input - TouchPoint.Size Always 1.1

Question

I am writing a small application for WP7 using Silverlight, and it would be useful for my application to find out the main dimensions of the fingerprint (height, width). After searching, I found and used the TouchPoint.Size property. However, this always returns a value of 1 for height and width.

Is this expected on Windows Phone? Is this not supported? Is this a feature not supported by Silverlight? Is it possible to get this information to capture another API? Should I switch to XNA, does XNA support this information?

Answer 1

SL does not tell you about the size of the touch, and I do not know XNA well enough to know if this is so.

Answer 2

Have you tried the WP7 Toolkit GestureService to get a position? This might work for you.