At the moment it does not do much… Simply draw your Kanji on the bottom left draw area. Then click appropriate Kanji that appeared on one of the buttons on the right (if it was properly recognized of course). This will display its readings, meanings and additional info. Press L to clear the Kanji Draw area.

http://palib.info/forum/modules/newbb/viewtopic.php?viewmode=flat&type=&topic_id=3578&forum=10