gtk.DrawingArea + Cairo

[Rafael Barbolo Lopes]

Hi, I was wondering if it is possible to receive signal events when mouse
moves over a cairo painting inside a gtk.DrawingArea.

I am trying to develop a grid widget. So the grid background is a
gtk.DrawingArea and the grid's lines are cairo lines.
I am trying to create an event that permits  me to  receive a signal when
the mouse is over the lines.

Any suggestion?

Thx
-- 
...Rafael...
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