topic __fastcall issue? in Archicad C++ API

__fastcall issue?

Anonymous — Mon, 07 Aug 2023 10:08:38 GMT

Using the rendering API I bumped into the following problem:

To use the FreeImage library I include its header and link its .lib file. The whole library uses __cdecl. It has function names like this:
FreeImage_Save(...)

In the .lib it looks like this:
_FreeImage_Save@16

But when I try to build my project the linker says it cannot find the implementation for the function named:
_FreeImage_Save

(I am pretty sure it doesn't have to do with the extern "C" thing. )

Any solutions would be very welcome.

Chrispy

Re: __fastcall issue?

Oleg — Fri, 08 Apr 2005 04:21:02 GMT

_FreeImage_Save@16

It looks like __stdcall name decoration.

Is the functions in the header file of FreeImage library decrared
like __stdcall FreeImage_Save(...) or just FreeImage_Save(...) ?

Re: __fastcall issue?

Anonymous — Fri, 08 Apr 2005 08:16:15 GMT

The header files are simply FreeImage_Save(...)

Why does the linker search for _FreeImage_Save() ?

Re: __fastcall issue?

Oleg — Fri, 08 Apr 2005 09:20:38 GMT

Is the FreeImage libarary from sourceforge ?

I have just downloaded it. The header file declaration is
DLL_API BOOL DLL_CALLCONV FreeImage_Save()

DLL_CALLCONV should be __stdcall. Make sure you project has
defined WIN32 macro and NOT defined FREEIMAGE_LIB and __WIN32__
( it is at the begin of the FreeImage.h header )