| Re: ABOUT DLL WITH VC++ IN IDL. HELP! [message #11700 is a reply to message #11693] |
Thu, 07 May 1998 00:00  |
rivers
Messages: 228
Registered: March 1991
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Senior Member |
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In article <35502831.1546E712@teb.upm.es>, Julio Gustavo Perez Fernandez <gustavo@teb.upm.es> writes:
> Hi!, my name is Gustavo. I am working in the Group of Telemedicine
> and Bioengineering at the Polytechnical University of Madrid, I am
> interested in building DLLs with VC++, to use them in IDL ver 5.0.If
> somebody could provide me with some information about how to do it.
> We are using CALL_EXTERNAL function but we have some troubles.
> Some questions:
> Do we have to use "__declspec(dllexport)" or ".def" ?
> What are the link options that we have to use?
> We would like to know if it is possible to link VC++ .LIB with a
> programm in IDL.
There is an example provided in the idl50\external\sharelib directory.
It includes an example makefile and .def file. I have been using CALL_EXTERNAL
under Windows NT 4.0 with no problem. Note that in IDL 5.1 RSI changed the way
strings are passed to CALL_EXTERNAL under Windows. The good news is that they
made it compatible with the way it works on Unix. The bad news is that you
need 2 different DLLs if you want to support both IDL 5.1 and previous versions
of IDL.
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or:
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