I would dig deep inside the Registry. Wouldn't surprise me if there is some
like "Dont Probe" key for the mouse driver, or perhaps a "No Mouse" key for
the serial port driver. They must (?) have provided for the possibility of
other devices sending a M at startup.
Also consider another alternative.
I believe that if you install another driver that says it uses the COM port,
the mouse driver doesn't bother with it.
So, if you write a small driver to do what you want, instead of an app, you
should be ok.
Niclas
Marwan Ansari wrote:
> Hi guys,
> I know this is has a windows question embedded in it
> but maybe you wouldnt mind taking a gander at it anyway.
>
> We are trying to get windows to not realize that
> a device connected to it is a mouse so that we can
> read the raw input. You see, if windows sees a mouse
> on the serial port and the ps2 port then both control
> the cursor. We want to see if we can prevent the serial
> mouse from being detected.
>
> Since the mouse will return an "M" to the os
> when the DTR is toggled... two ideas have been proposed..
>
> 1) clip the DTR
> -- this just sounds so wrong to me. the DTR has
> got to be used for other things right?
> 2) re-pin (?) the dtr to that it has a -12V on it at
> all times. --- I dont think this will work
> either.
>
> Do you guys have any ideas? This really isnt a problem
> under linux but for windows its a realy pain. Do you guys
> know of a way to prevent the os from using a mouse on the
> serial port?
>
> Many Many Thanks in advance,
> -Marwan
>
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