interact with window behind top window

[Slanter2010]

I was wondering if it was possible to have window A above window B, but have window B be the one receiving all input from the keyboard and mouse. I'm running Ubuntu 9.10 (karmic).

I hope I explained that well enough :P

[gordintoronto]

Yes, it's possible. Sometimes when I click on a link in the Evolution e-mail client, Firefox "gets the focus," but it is behind the Evolution window.

[orlox]

As for the keyboard, you can do that by choosing "always above" from the options given when right-clicking on the window border. You can then alt-tab to another window, and it will have keyboard focus, but the other window will cover the whole screen. However, the mouse will still act on the top window.