X windows-where it stores the information regarding the opened windows ?

[sri]

HI..
i used xwininfo i got some information, but actually the x server where it
stores
the information regarding the opened windows, is there any possibility  to
know this
information.
one more thing i want to know how to log the mouse clicks using which
function i can
do it..

-- 
Thanks & Regards
sridhar gupta yerram
M.Tech(A.I)
University of Hyderabad
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