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#! /bin/bash

# If possible use the KDE program kdialog
# otherwise fall back to the generic X program xmessage.
if test -x $( type -p kdialog )
then PopupProgram='kdialog --error'
else PopupProgram='xmessage'
fi

# If hp-toolbox cannot access a hplip device
# then it doesn't show up on the X window system
# it only shows an 'ERROR...' message on stderr
# but exits nevertheless with zero exit code.
if test -x $( type -p hp-toolbox )
then hp-toolbox 2>&1 1>/dev/null | grep -q 'ERROR' && $PopupProgram 'No configured HP device found'
else $PopupProgram 'Cannot execute hp-toolbox.'
fi