If you are compiling with MSVC and will link to the static library (libFLAC++.lib) you should define FLAC__NO_DLL in your project to make sure the symbols are exported properly.
| Defines | |
| #define | FLACPP_API | 
| #define | FLACPP_API_VERSION_CURRENT 8 | 
| #define | FLACPP_API_VERSION_REVISION 0 | 
| #define | FLACPP_API_VERSION_AGE 2 |