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Mikolaj Machowski posted an nice example of using KDialog with DCOP to the KDE Developers mailing list a while back:


#!/bin/bash

if [ $PROGRESS ]; then
  for (( i=0; i<30; i++ )); do
    dcop $PROGRESS setProgress $i
    sleep 1
  done
  dcop $PROGRESS close
fi


The purpose of Mikolaj's post was to suggest a method of regimenting work periods - e.g. 20 minutes on, 5 minutes off - using the above script and KAlarm, a personal alarm message, command and email scheduler. But, more than that, it shows off one of the many hiddens treasures of KDE: KDialog, which allows shell scripts to take advantage of some of the KDE widget set, and DCOP, KDE's Desktop COmmunications Protocol.

More information and a tutorial can be found at:

http://developer.kde.org/documentation/tutorials/kdialog/t1.html