AZ>
  > I'm trying to port my DOS DDPLUS door to OS/2..  How do I
  > access the modem in Virtaul Pascal/2?
AZ>

  In general, you access the modem in *any* language under OS/2 by
  simply open a COMn device, and reading from and writing to it.  Most
  of the complicated stuff, e.g. setting BPS rates and handshake
  protocols, are performed via category 1 DosDevIOCtl calls (see your
  OS/2 Developers' Toolkit for more information).

  However, since you are writing a door, it is a fair assumption that
  the program that is calling the door will have set up the COM device
  properly, and that all that your door will be interested in is writing
  out data and reading responses.

  For more information on serial I/O using Virtual Pascal for OS/2,
  contact David Muir of 1:259/423.0, who posted a fair amount of VP
  source for serial I/O here in the OS2PROG echo back in August.

  > JdeBP <
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