VMS Help RTL Routines, DTK$, DTK$SET_TERMINAL_MODE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   The Set the Mode for the Video Terminal  Connected  to  the  DECtalk
   Device  routine  controls  the  attributes  of  the  video  terminal
   connected to the DECtalk device.

      Format:

        DTK$SET_TERMINAL_MODE  voice-id [,new-mode] [,old-mode]

      Arguments:

   voice-id

   OpenVMS usage: identifier
   type:          longword (unsigned)
   access:        read only
   mechanism:     by reference

   Voice identifier of the DECtalk device.  The  voice-id  argument  is
   the address of an unsigned longword containing this identifier.  The
   voice identifier is returned by the DTK$INITIALIZE routine.

   new-mode

   OpenVMS usage: mask_longword
   type:          longword (unsigned)
   access:        read only
   mechanism:     by reference

   DECtalk mode to be set.   The  optional  new-mode  argument  is  the
   address of a longword bit mask containing the specified mode.  Valid
   values for new-mode are:

   o  DTK$M_HOST

   o  DTK$M_SPEAK

   o  DTK$M_EDITED

   o  DTK$M_HARD

   o  DTK$M_SETUP

   o  DTK$M_FILTER

   old-mode

   OpenVMS usage: mask_longword
   type:          longword (unsigned)
   access:        write only
   mechanism:     by reference

   Current mode settings of the DECtalk device.  The optional  old-mode
   argument  is  the  address  of a longword bit mask that receives the
   current DECtalk settings.