Visually-transparent & Input-transparent Windows

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http://unix.stackexchange.com – I'm a Java programmer who's rather new to Linux. I'm on Suse / Gnome and I need to create a window which: Is visually translucent/transparent. This is the usual alpha blending that composes a foreground image with a background image, while allowing the background image to be visible "through" the foreground image. Is transparent to mouse events, in other words the window accepts no mouse events and all such event are passed through to whatever lies underneath. I successfully got the visual transparency but not the mouse event transparency. When I test the environment translucency capabilie (HowTos)