How do I get the coordinates of a mouse click on a canvas element?

Question

What\'s the simplest way to add a click event handler to a canvas element that will return the x and y coordinates of the click (relative to the canvas element)?

No

Answer 1

In Prototype, use cumulativeOffset() to do the recursive summation as mentioned by Ryan Artecona above.

http://www.prototypejs.org/api/element/cumulativeoffset