wine users - Aug 2002 - Linux C++ program using 3rd-party DLL?

Hi,

I'm working with a spectrometer at an research institute but they only 
have windows 16-bit dll to control the sprectrometer. The dll is documented.

My question is: Can I write a linux c++ program that uses this dll with 
wine?

On the wine webpage it says "Optional use of external vendor DLLs" but
how do I do it? On a first glance I have also not found any hints on 
that in the documentation.

Thank you very much for any help,
best regards,
Axel Siebenwirth

On Wed, Aug 14, 2002 at 03:22:10PM +0200, Axel Siebenwirth
wrote:
> Hi,
> 
> I'm working with a spectrometer at an research institute but they only 
> have windows 16-bit dll to control the sprectrometer. The dll is
documented.
> 
> My question is: Can I write a linux c++ program that uses this dll with 
> wine?
Well, you'd write a Winelib program.

Winelib programs don't have any problem with interfacing with DLLs.
It's only that there is a problem with *Win16* DLLs...

In order to thunk down to Win16 from Win32 code (Winelib can *only* use
Win32 !), you'd you have to use such things as e.g. QT_Thunk() etc.
(definitely not for the faint of heart)

Does that help ?

-- 
Andreas Mohr                        Stauferstr. 6, D-71272 Renningen, Germany
Tel. +49 7159 800604                http://mohr.de.tt

On Wed, 14 Aug 2002, Axel Siebenwirth wrote:
> Hi,
>
> I'm working with a spectrometer at an research institute but they only
> have windows 16-bit dll to control the sprectrometer. The dll is
documented.
It would be better if the spectrometer was.
>
> My question is: Can I write a linux c++ program that uses this dll with
> wine?
>
If you have the source to the dll, you can rewrite it as a 32 bit Wine
dll.  That would be easier.  16 bit "native" dll's are not well
supported: linux c compilers don't do 16 bit code.  Not easily, anyway.
Maybe you can kluge something using LoadLibrary, GetProcAddress, and
CallProcEx, as you would have to do from a windows 32 bit program.
I guess.  I don't do windows, but I did parts of Wine's CallProcEx some
years ago.

One other caution:  If that 16 bit dll expects to get at the hardware
directly, it is going to be frustrated.  Wine works hardware through the
OS (linux in your case).
> On the wine webpage it says "Optional use of external vendor
DLLs" but
> how do I do it? On a first glance I have also not found any hints on
> that in the documentation.
>
Did you exen look in <wine>/documentation?  There is a whole bunch of
doco on winelib.  Also, see "man winemaker".
> Thank you very much for any help,
> best regards,
> Axel Siebenwirth
Lawson
---oops---



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