transparent window with X11 and Qt4.2.3

Hello everybody.

I need to do a transparent window, but i've got some restrictions:

- i work with X11 (openmotif)
- My version of Qt is 4.2.3

this is needed to capture all events of another window sited below of the transparent window that i want to do.

or if somebody knows how to capture all events of a window that not is into my application (it's an VNC remote window). I need to know, if a person clics over the vnc window.

please, help me...

Thanks in advance!!