Version:            (using KDE KDE 3.3.1)
Installed from:    Debian testing/unstable Packages
OS:                Linux

It would be nice to have the "execute a program" ability in the custom notifications. A it is now I must run my totally awesome script to make dcop calls. 

$ cat user_online
#!/bin/sh

##### name to search for #######
name=someuser
################################

if [ dcop kdesktop 2>/dev/null ]
then
        exit 3
fi

kopete_running ()
{
        if [ dcop kopete 2>/dev/null ]
        then
                exit 2
        fi
}

kopete_running
old_paper=`dcop kdesktop KBackgroundIface currentWallpaper 1`

while true; do
        kopete_running
        dcop kopete KopeteIface onlineContacts | grep $name > /tmp/online
        if [ `wc -c /tmp/online | cut -d " " -f 1` -gt 0 ]
        then
                dcop kdesktop KBackgroundIface setWallpaper "$HOME/media/pictures/llama.jpg" 1
        else
                dcop kdesktop KBackgroundIface setWallpaper "$old_paper" 1
        fi
        rm /tmp/online
        sleep 5s
done


Also the list might better serve this question, but laziness is overtaking me. Is there an easy way to see if a user is online from their name, not just uid? Also how can I look up a uid from username?