6.   EXTENDED KEYBOARD CODE SUPPORT

        DOORWAY supports  all extended character codes!  This allows
        you  to  send it  the Function  keys,  Cursor keys,  and ALT
        functions.   Undefined  codes and  the Ctrl  PrtSc code  are
        trapped  from  going to  the  program, since  some undefined
        codes can  crash the system.   If you  want to  override all
        extended codes, then enter  a /T:@ on the command  line, as
        this will then trap the NULL character.  At this time, there
        are several  modem packages which support  extended keyboard
        codes.  The following table lists  those which claim to have
        DOORWAY  capability.  Most  of  the  comm programs  go  into
        DOORWAY mode by entering  an ALT "=" (internal), except  for
        GT  Power, which uses a  CRTL DOWN Arrow.   If your favorite
        modem program doesn't support extended  key codes, you might
        mention this  much needed  function to  your favorite  modem
        software vendor!

        DOORWAY also  supports the  enhanced keyboard.   If  the com
        package is capable of sending the enhanced keys from remote,
        then doorway will return  them to the program on the HOST if
        an enhanced keyboard  call is performed.   Note that if  the
        HOST does not have an enhanced  keyboard, any program on the
        HOST is highly unlikely to ask  for enhanced codes, and will
        therefore not get them.  Standard extended codes are encoded
        as  a NULL followed by the  SCAN CODE.  E0 enhanced extended
        codes are encoded as "NULL E0H SCANCODE".