C ++ dynamic link library

dll export functions defined in the header file

#ifdef MYDLL_EXPORT
#define MYDLL_EXPORT extern "C" _declspec(export)
#else
#define MYDLL_EXPORT extern "C" _declspec(import)
#endif

DEF file

vs the Properties -> Linker -> Input -> write module definition file def File Name / Links -> command line /DEF:xx.def

 reference

https://blog.csdn.net/u011555996/article/details/80293812