       catgets catHandle setnum msgnum defaultstr
              Retrieve   a   message   form  a  message  catalog.
              CatHandle should be a Tcl  message  catalog  handle
              that  was  returned  by  catopen.   Setnum  is  the
              message set  number,  and  msgnum  is  the  message
              number.  If  the message catalog was not opened, or
              the message set or message number cannot be  found,
              then the default string, defaultstr, is returned.
