[cairo] Mouse click collision with cairo curve

[Deepankar Sharma]

I am just beginning to play with cairo and am currently battling with this
problem. I have a few cairo curves (drawn with cairo_curve_to) on the
screen. I am storing the begin, end, thickness and control points for the
curves. When I detect a click, I want to check if I just clicked over a
curve. In essence, I want to check if an x,y co-ordinate lies on a curve.
Any ideas / hints / approaches ?
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