The compiler loses the implementation of the method in the library

Question

C++ / C#

I write a class in a static library:

class IMercatorMap : public BaseGLObject
{	
public:
  IMercatorMap() : BaseGLObject(BT_NOTHING){};
  virtual ~IMercatorMap(){};
  virtual void SetParameters(int Zoom, const iPoint &LeftBottomIndex, const iPoint &TopRightIndex) = 0;

  static IMercatorMap *Create(bool SmoothZoom);
};

And the corresponding implementation:

IMercatorMap *IMercatorMap::Create(bool SmoothZoom)
{
  return new MercatorMap(SmoothZoom);
}

As a result, I get the following error in the exe that holed this library:
error LNK2019: reference to an unresolved external symbol "public: static class ANTSP::IMercatorMap * __stdcall ANTSP::IMercatorMap::Create(bool)"

What am I doing wrong?

Answer 1

Too little data in the question, but I'll try to guess. I'm worried about __stdcall in the linker error output. It looks like the method with __cdecl is implemented and the calling code has built in a call with __stdcall calling convention.

Answer 2

do

extern "C" inline IMercatorMap* Create(bool SmoothZoom)
{
    return new MercatorMap(SmoothZoom);
}