SET(MESSAGE_ACTION_TYPE)

  Sets the action to be taken when DECTPU generates a completion status of
  the severity you specify.

  Syntax

     SET (MESSAGE_ACTION_TYPE, {NONE | BELL | REVERSE})

  Parameters

     NONE       Directs DECTPU to take no action.  This is the default.

     BELL       Directs DECTPU to ring the terminal's bell when a completion
                status of the specified severity occurs.

     REVERSE    Directs DECTPU to display the completion status in reverse
                video for ½ second, then display the status in ordinary
                video.

  Comments

  To set the severity at which the action is taken, use the SET
  (MESSAGE_ACTION_LEVEL) built-in.  The action you specify using SET
  (MESSAGE_ACTION_TYPE) is taken for all completion messages of the
  specified severity or greater severity.

  Example

  The following statements directs DECTPU to display informational, warning,
  and error messages in reverse video for 1/2 second, then in ordinary
  video:

     SET (MESSAGE_ACTION_TYPE, REVERSE);
     SET (MESSAGE_ACTION_LEVEL, 3);

  Related Topic

     SET(MESSAGE_ACTION_LEVEL)