Making use of eject key

[Konstantin Svist <fry kun gmail com>]

Hi,

I'm wondering if I can make the CD/DVD eject keyboard button on my
laptop work with KDE. Don't ask me why a laptop has a "cup tray"
There are no mesages in /var/log/messages and dmesg when I press it - so
SOMETHING seems to trap it. Unfortunately, when I press it in KDE to
define a shortcut, the key can't be coded to the shortcut.
According to showkey -s, the key code is "0xe0 0x7d".
How do I make the key usable in KDE?

Thanks!