[C#] c#에서 c++ dll 사용하기

http://nowonbun.tistory.com/132

http://blog.secmem.org/598

http://egloos.zum.com/seraph4021/v/4728982

https://stackoverflow.com/questions/11879108/how-to-call-a-c-function-from-c-sharp-with-a-wchar-out-parameter