

          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.
