字符集转换: Ansi - Unicode

字符集转换: Ansi - Unicode

 wstring AnsiToUnicode (const string& strSrc )
 {
     /*!< 分配目标空间 */
     int iAllocSize = MultiByteToWideChar(CP_ACP,,strSrc.c_str(),-,NULL,NULL);
     WCHAR* pwszBuffer = new WCHAR[ (UINT)iAllocSize ];
     if ( NULL == pwszBuffer )
     {
         return L"";
     }
     int iCharsRet = MultiByteToWideChar( CP_ACP, , strSrc.c_str(),-,pwszBuffer, iAllocSize );
     /*!< 成功 */
     wstring wstrRet;
     if (  < iCharsRet )
     {
         (void)wstrRet.assign ( pwszBuffer, static_cast<size_t>( iCharsRet ) );
     }

     /*!< 释放内存 */
     delete[] pwszBuffer;

     return wstrRet;
 }