int WideCharToMultiByte(
  UINT CodePage,            // code page
  DWORD dwFlags,            // performance and mapping flags
  LPCWSTR lpWideCharStr,    // wide-character string
  int cchWideChar,          // number of chars in string
  LPSTR lpMultiByteStr,     // buffer for new string
  int cbMultiByte,          // size of buffer
  LPCSTR lpDefaultChar,     // default for unmappable chars
  LPBOOL lpUsedDefaultChar  // set when default char used
);
 

 
DECLARE INTEGER WideCharToMultiByte IN kernel32;
    INTEGER   CodePage,;
    INTEGER   dwFlags,;
    STRING    lpWideCharStr,;
    INTEGER   cchWideChar,;
    STRING  @ lpMultiByteStr,;
    INTEGER   cbMultiByte,;
    STRING    lpDefaultChar,;
    INTEGER   lpUsedDefaultChar