CV_EXTERN_C        73 modules/core/include/opencv2/core/cvdef.h #ifndef CV_EXTERN_C
CV_EXTERN_C        93 modules/core/include/opencv2/core/types_c.h #  define CVAPI(rettype) CV_EXTERN_C CV_EXPORTS rettype CV_CDECL
CV_EXTERN_C        97 modules/core/include/opencv2/core/types_c.h #  define CV_IMPL CV_EXTERN_C