LAST_KEY
     Returns a DECTPU keyword for the last key you entered or that DECTPU
     read or executed.  If you are replaying a LEARN sequence, LAST_KEY
     returns a keyword for the key that defines the LEARN sequence.
  Syntax
     keyword := LAST_KEY
  Examples
     1.  endk := LAST_KEY;
         Stores in the variable ENDK the last key you typed.
     2.  The following procedure prompts the user for input for key
         definitions:
         PROCEDURE user_define_key
            udef := READ_LINE ("Type the definition: ");
            ukey := READ_LINE ("Press the key to define: ", 1);
            IF LENGTH (ukey) > 0
               THEN ukey := KEY_NAME (ukey)
               ELSE ukey := LAST_KEY;
            ENDIF;
            DEFINE_KEY (udef, ukey);
         ENDPROCEDURE;
  Related topics
     DEFINE_KEY   LOOKUP_KEY   KEY_NAME   KEYNAMES TABLE   READ_KEY