vc gbk转big5

void GBKSimplified2GBKTraditional(LPTSTR szSimplified)
{
  LCID dwLocale;
  WORD wLangID;
  wLangID=MAKELANGID(LANG_CHINESE,SUBLANG_CHINESE_SIMPLIFIED);
  dwLocale=MAKELCID(wLangID,SORT_CHINESE_PRC);

  int nLength;
  char *pBuffer;
  nLength=LCMapString(dwLocale,LCMAP_TRADITIONAL_CHINESE,(LPCTSTR)szSimplified,strlen(szSimplified),NULL,0);
  pBuffer=new char[nLength+1];
  pBuffer[nLength]=0;
  LCMapString(dwLocale,LCMAP_TRADITIONAL_CHINESE,(LPCTSTR)szSimplified,strlen(szSimplified),pBuffer,nLength);
  strcpy(szSimplified,pBuffer);
  delete(pBuffer);
  return;
}


//WCHAR 转换成 CHAR函数
void ConvertUnicodeToAnsi(WCHAR * Source,char * obj)
{
DWORD dwNum = WideCharToMultiByte(950,NULL,Source,-1,NULL,0,NULL,FALSE);
WideCharToMultiByte (950,NULL,Source,-1,obj,dwNum,NULL,FALSE);
}
//CHAR TO WCHAR
void ConvertAnsiTounicode(char * source,WCHAR *obj)
{
int nLength = 0;
nLength = MultiByteToWideChar(CP_ACP,0,source,-1,NULL,0);
MultiByteToWideChar(CP_ACP,0,source,-1,obj,nLength);
}
void CConvertDlg::OnButton1() 
{
    // TODO: Add your control notification handler code here
    char p[200]={0};
    strcpy(p,"语言");
    WCHAR buf[200]={0};
    GBKSimplified2GBKTraditional(p);
    ConvertAnsiTounicode(p,buf);
    strcpy(p,"");
    ConvertUnicodeToAnsi(buf,p);
}

原理：
1.str 转GBK繁体
2.str 转UNICODE
3.STR 转BIG5