16-dll for 95

Susanto Purnama -- purnama@actsw.amat.com
Monday, January 22, 1996

Hi, I'm planning to port the existing Win3.1 MFC program to
win95. The program makes use of 16dll. And I still
need the dll in win95.
question: Will using 16dll in 95 cause any side-effect?

thanks

Susanto Purnama
purnama@actsw.amat.com

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Brad Wilson -- bradw@netnet.net
Wednesday, January 24, 1996

[Mini-digest: 3 responses]

Susanto Purnama wrote:
 
> Hi, I'm planning to port the existing Win3.1 MFC program to
> win95. The program makes use of 16dll. And I still
> need the dll in win95.
> question: Will using 16dll in 95 cause any side-effect?

Using a 16-bit DLL from a 32-bit application is difficult.  You cannot
directly call any of the functions in the 16-bit DLL.  You have a variety of
methods that you could use (such as creating a 16-bit application that links
to the DLL and creates a hidden window, and passing messages to do things).

If the DLL is even moderately complex, chances are that it's going to be
extremely difficult to do this.  You should get a 32-bit DLL counterpart
if possible.

--
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//  QOTW:  "Don't think of yourself as the least intelligent creature in this
//          room ... if you consider the entire planet, you're smarter than
//          literally hundreds of people."  - Dogbert to Dilbert

-----From: Marty Fried 

Common problem. No easy solution.  You can use the Thunking
mechanism (flat thunking, I believe for Win95).  There is a
different thunking scheme for NT, and for Win32s.  They aren't
compatible.  It's not fun.

 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
 Marty Fried (mfried@linex.com)
 Marin County, California

-----From: Doug Boone 

  
Well, assuming that you mean that you're using a 16-bit DLL (I don't have a
16dll anywhere) the word "lots" comes to mind...
  
It means you're going to get into thunking land which is pretty trecherous.
You can do it but you need a really good reason.
  

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