Something

#!/bin/bash
echo "Entered"
dcopRef=`kdialog --progressbar "MythTV will shut down the System. Press Cancel to Abort" 60`
dcop $dcopRef showCancelButton true

until test "true" == `dcop $dcopRef wasCancelled`; do
  sleep 1
  inc=$((`dcop $dcopRef progress` + 1))
  dcop $dcopRef setProgress $inc;
  if test $inc == 60; then
        dcop $dcopRef close
        exit 0
  fi
done

dcop $dcopRef close
exit 2