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Par2: Using Clarion DLLs in VC++ 1998-10-26 -- Dusty Hester There are a few tricks to get VC++ to call a Clarion DLL. Granted I haven't
done this in C4, but I can't imagine it has changed that much from CW2.003.
1) All clarion functions should be displayed as Pascal
2) When passing *cstrings, the Clarion prototype is long, and the C++
prototype is *cstring. The Clarion long will receive the address of the
string, you can then use memcpy to actually get the string into one of your
variables.
3) C++ expects name mangling...I always used the Name attibute on my
Clarion function to mimic what the C++ compiler is looking for.
4) You have to create your own .lib file. You will do this by creating a
.def file, specs are in the C++ docs, and using the Lib tool to create a
.lib from it.
I hope this is enough to get you started in the right direction. Again, I
haven't done this in almost a year, so some of this may be outdated, but I
doubt it.
Today is November 21, 2024, 8:18 am This article has been viewed 35215 times.
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