Nowadays Xubuntu uses the Whisker Menu panel plugin by default. It allows the user to easily trigger the lock screen via button click.
http://goodies.xfce.org/projects/panel-plugins/xfce4-whiskermenu-plugin
Nowadays Xubuntu uses the Whisker Menu panel plugin by default. It allows the user to easily trigger the lock screen via button click.
http:// goodies. xfce.org/ projects/ panel-plugins/ xfce4-whiskerme nu-plugin