Pre-defined constant flags for DISPFILE

 Functions
  If the flags are set/used they mean the following:

   GRAPH  search for graphics specific files
   LANG   search for language specific files
   SEC    search for security specific files

 Values
  GRAPH = 1 = 1b   = 1o = 1h
  LANG  = 4 = 100b = 4o = 4h
  SEC   = 2 = 10b  = 2o = 2h

 Remarks
  The DISPFILE statement will allow you to display a file to the user,
  and optionally to have PCBoard look for alternate security, graphics,
  and/or language specific files using the following flags.

  GRAPH  This flag instructs PCBoard to search for alternate graphics files
         (ANSI or RIPscrip) via the G and R suffix.  The current graphics
         mode may be obtained with GRAFMODE().

  LANG   This flag instructs PCBoard to search for alternate language
         files via the language extension.  The current language extension
         may be obtained with LANGEXT().

  SEC    This flag instructs PCBoard to search for alternate security
         level files via the security level suffix.  The current security
         level may be obtained with CURSEC().

 Example

  STRING s
  DISPFILE "MNUA",SEC+GRAPH+LANG
  INPUT "Option",s