字符集转换: Ansi - Unicode

    字符集转换: Ansi - Unicode

 1 wstring AnsiToUnicode (const string& strSrc )

 2 {

 3     /*!< 分配目标空间 */

 4     int iAllocSize = MultiByteToWideChar(CP_ACP,0,strSrc.c_str(),-1,NULL,NULL);

 5     WCHAR* pwszBuffer = new WCHAR[ (UINT)iAllocSize ];

 6     if ( NULL == pwszBuffer )

 7     {

 8         return L"";

 9     }    

10     int iCharsRet = MultiByteToWideChar( CP_ACP, 0, strSrc.c_str(),-1,pwszBuffer, iAllocSize );

11     /*!< 成功 */

12     wstring wstrRet;

13     if ( 0 < iCharsRet )

14     {

15         (void)wstrRet.assign ( pwszBuffer, static_cast<size_t>( iCharsRet ) );

16     }

17 

18     /*!< 释放内存 */

19     delete[] pwszBuffer;

20 

21     return wstrRet;

22 }