How to get the topmost window through xlib programming

[Karthik Ramamoorthy]

Hi All,

           Is there any option to get the topmost window or currently active window through anu xlib API . Because i think, through XQueryTree we can get all the Alive windows(windows that are not closed) only. So is there any means to get the topmost window, also is it possible to check whether the windowID that i am having is top most window or not?


         Thanks in advance

Regards
Karthik