Re: Remote control of Dosemu

[Mike McCarty <Mike.McCarty@sbcglobal.net>]

John Coppens wrote:
> On Mon, 21 Jul 2008 13:38:51 -0500
> Mike McCarty <Mike.McCarty@sbcglobal.net> wrote:
> 
>> Another possibility is that it might have a mode to display output
>> to the printer. Then you can likely capture INT5 (IIRC) and intercept
>> the BIOS interrupts to control the printer, or redirect the printer
>> output from DOSEMU. If that's not possible, you could try simulating
>> the keypress to force a screen capture to the printer PrintScrn key.
>> I recall a program KEYFAKE which I may have lying around which might
>> be able to do something like that.
> 
> No possibility to change, as far as I can see. A little surprised though,
> because the program works on Hercules and CGA screens, so there should be
> some kind of selection mechanism. I suspect it is automatic.
> 
> I remember 'keyfake'. In fact, I wrote a TSR program that fakes
> keypresses. I hadn't thought about PrtScr though. I believe there was an
> interrupt called when PrtScr was pressed. But, I seem to remember

What I had in mind is that DOSEMU probably emulates "PrintScreen" by
sending the output to a Linux printer. You might be able to tell
DOSEMU to send it to a regular Linux file and postprocess that.
There is a BIOS call to send a single character to the printer,
which is INT5, I think. Anyway, trying to get just a file visible
to Linux is more likely to succeed than any number of TSRs doing
junk under the emulated MSDOS, having done a few old popup TSRs
myself.

Mike
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