increase number of printers?

increase number of printers?

[Frantisek Hanzlik]

First, i'm glad to see as DOSEMU development in past several days
move onwards again. Thank You, Bart and all DOSEMU developers and
contributors!

We use dosemu for running a warehousing activities program, and we
are in problems with insufficient number of printers availabe in
DOS. Know someone what are the possibilities for increasing actual
DOS max printer number (3)?

Our need are not either print to more physical printers, but use DOS
print under Linux to other purposes as:
- print to file and then convert this file under Linux to PDF
- print to file and then send this file from Linux as mail
- print to file and then process this eg. with inotify/incrond way
- send printed data to any Linux program

Our software is stil active maintained and developed, but its
authors regrettably supposes running only under windows (for which
it has several supplemental windows programs for windows printing,
mailing etc.). Under windows program can use printers LPT1-LPT9.
It would be very nice when it went use ports over LPT3 in DOSEMU
too.

As there are no needs for direct print to printer, probably are no
needs for LPTx ports address room in BIOS Data Area.

I have no knowledge how are LPT4+ ports handled in windows, but when
it is "normal" file open (INT 21 fn 3D "Open file using handle"?),
then probably should not be extreme problem solve this in FreeDOS
and DOSEMU code.

Can please someone with better skill explain something about this?
And are there other DOSEMU users who were happy with this extension?

Thank in advance,
Franta Hanzlik

Re: increase number of printers?

[Andrew Joakimsen]

I also would like for this to work. We are in the exact same boat with
some actively developed software that uses Windows add-on. I gave
written a script that extracts the fax no. from the print job and
faxes the invoice, but it requires to change the printer. LPT1-LPT3
are used as sales printer, label printer, warehouse printer. If dosemu
supports LPT4+ this process would be much simpler.

On Monday, April 25, 2011, Frantisek Hanzlik <franta@hanzlici.cz> wrote:
> First, i'm glad to see as DOSEMU development in past several days
> move onwards again. Thank You, Bart and all DOSEMU developers and
> contributors!
>
> We use dosemu for running a warehousing activities program, and we
> are in problems with insufficient number of printers availabe in
> DOS. Know someone what are the possibilities for increasing actual
> DOS max printer number (3)?
>
> Our need are not either print to more physical printers, but use DOS
> print under Linux to other purposes as:
> - print to file and then convert this file under Linux to PDF
> - print to file and then send this file from Linux as mail
> - print to file and then process this eg. with inotify/incrond way
> - send printed data to any Linux program
>
> Our software is stil active maintained and developed, but its
> authors regrettably supposes running only under windows (for which
> it has several supplemental windows programs for windows printing,
> mailing etc.). Under windows program can use printers LPT1-LPT9.
> It would be very nice when it went use ports over LPT3 in DOSEMU
> too.
>
> As there are no needs for direct print to printer, probably are no
> needs for LPTx ports address room in BIOS Data Area.
>
> I have no knowledge how are LPT4+ ports handled in windows, but when
> it is "normal" file open (INT 21 fn 3D "Open file using handle"?),
> then probably should not be extreme problem solve this in FreeDOS
> and DOSEMU code.
>
> Can please someone with better skill explain something about this?
> And are there other DOSEMU users who were happy with this extension?
>
> Thank in advance,
> Franta Hanzlik
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-- 
Med Vennlig Hilsen,

A. Helge Joakimsen
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