text: #ifndef WIDE_CHAR_H
  #define WIDE_CHAR_H
  
  void MByteToWideChar(wchar_t * buffer, int bufferSize, const char * str, int length);
  char * WideCharToMByte(const wchar_t * buffer, int length);
  wchar_t * MByteToWideChar(const char * buffer, int length);
  
  #endif