Small event handeling problem with non rectagular component

[Jigar Gosar]

i have a circular component i dont want it to be cliked when mouse has been clicked outside its circular boundary.
i know most of u will reply that in mouse click event check if x&y cordinates r within the circular boundary.
but the problem is i have many circular components overlaping each other and i want them to recive mouse events when mouse is on their circular region. but insted my upper circular component gets the event even if mouse has been clicked in its rectangular region, outside the actual circular region.r u getting it.
please help me.
p.s. hi cindy