Yes, you can.  In open the LPT_NONESPOOL drive object.  This bypasses
the spooler altogether.  Also, unless you have a printer installed on
the computer, the spooler is not loaded.  Finally, it still works even
when going through the SPOOLER.  Check the DDK for details.

Regards,

James

-----Original Message-----
From: Olin Lathrop [mailto:olin_piclist@EMBEDINC.COM]
Sent: Thursday, May 31, 2001 12:31 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]:controlling serial port from windows NT


>>
Also, using the API allows you to use the
parallel port so long as your device works with one of the 5 modes of
operation(Compatibility,Byte,Nibble,EPP or ECP).  Byte and Nibble modes
allow you to read from the parallel port while Compatibility allows you
to write to the port.  ECP and EPP modes allow both forward and reverse
data flow.
<<

Yes, sort of.  The API is there for controlling the parallel port, but
you
can't actually get at the parallel port that way unless you take down
the
print spooler first.  It is possible to get around this by creating a
custom
parallel port class driver, but that's not a trivial exercise.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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