Article 447 of comp.sys.amiga.reviews:
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From: jph@shell.portal.com (J.P. Hillenburg)
Newsgroups: comp.sys.amiga.reviews
Subject: Re: REVIEW: GVP ioExtender board
Followup-To: comp.sys.amiga.hardware
Date: 25 Jan 1994 02:54:11 GMT
Organization: The Amiga Online Review Column - ed. Daniel Barrett
Lines: 64
Sender: amiga-reviews@math.uh.edu (comp.sys.amiga.reviews moderator)
Approved: barrett@math.uh.edu
Distribution: world
Message-ID: <2i21kj$9ie@menudo.uh.edu>
Reply-To: jph@shell.portal.com (J.P. Hillenburg)
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Keywords: hardware, serial, parallel, MIDI, Zorro II, commercial, followup


	Since writing the ioExtender review, I have corrected the problems
with selecting a proper printer.device.  I have found out that Commodore did
provide a means for doing this, but there is no direct way to do it.  I
accomplished it by hex-editing the file ENV:Sys/printer.prefs.

	Also note that the following is totally applicable to other parallel
devices.

0) Copy your file ENVARC:Sys/printer.prefs to a safe place, so you can
   restore it if something goes wrong.

1) Find a decent hex editor, preferably FileX.  Make sure that the text
   column is 16 characters wide.  (It doesn't have to be, but makes things
   much easier for our purposes.)

2) Look for the word 'PUNT' in the text column. Place your cursor on the P,
   and then go down exactly two rows.  You can then type the name of your
   parallel device, without the .device. (e.g. "gvppar")

	[MODERATOR'S NOTE:  "Go down two rows" in this case means "move
	forward 32 characters," since each row contains 16 characters in
	Joseph's example.  This information may help you if you are using
	a hex editor other than FileX.  - Dan]

3) Once you have tested printing to make sure it works, run SYS:Prefs/Printer
   and SAVE the preferences.  This will copy it to ENVARC:, and at the same
   time, verifying your changes.

	Here is a hex listing of my printer.prefs file:

0000: 464F524D 0000009A 50524546 50524844    FORM....PREFPRHD     
0010: 00000006 00000000 00005054 58540000    ..........PTXT..     
0020: 00400000 00000000 00000000 00000000    .@..............     
0030: 00004570 736F6E58 00000000 00000000    ..EpsonX........     
0040: 00000000 00000000 00000000 00000000    ................     
0050: 00000000 00020042 00000000 0005004B    .......B.......K     
0060: 00005055 4E540000 00380000 00000000    ..PUNT...8......     
0070: 00000000 00000000 00000000 00000000    ................     
0080: 00006776 70706172 00000000 00000000    ..gvppar........     
0090: 00000000 00000000 00000000 00000000    ................     
00A0: 0000                                   ..                   

	Here is my modified printer.prefs file uuencoded, for those too lazy
to do the above themselves:

begin 777 env:sys/printer.prefs
M1D]230   )I04D5&4%)(1     8       !05%A4    0               X
M      !%<'-O;E@                                       ( 0@  X
M    !0!+  !054Y4    .                                &=V<'!AX
;<@                                  X
 X
end

	[MODERATOR'S NOTE:  This information will be added to the archived
	copy of the original review, available on our ftp site math.uh.edu.
	- Dan]
---

   Daniel Barrett, Moderator, comp.sys.amiga.reviews
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