32-Bit dll call 16-bit dll 
Author Message
 32-Bit dll call 16-bit dll

Hello Everyone,

I am using Microsoft C++ 4.2 on Windows NT.  I have a 32-bit DLL which
needs to call function(s) in a 16-bit DLL.  Any helpful information
would greatly be appreciated.

Thanks in advance

Sun, 13 Feb 2000 03:00:00 GMT  
 32-Bit dll call 16-bit dll

You need to use a mechanism called "THUNKING" look in the online docs
for more info.

THUNKING is generally not an easy, nor, portable thing (i.e. you can't
thunk 32bit to 16bit on NT) so you might want to investigate another
way.  For example create a 16bit EXE which loads your DLL and creates a
hidden window.  Then have your 32bit code communicate with the 16bit EXE
via DDE or OLE (the 16bit exe will call the dll and return values to
your 32bit program)

Author for Visual C++ Devloper          http://www.pinpub.com/vcd/
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Wed, 16 Feb 2000 03:00:00 GMT  
 [ 2 post ] 

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