MultiByteToWideChar API. This function maps a character string to a wide-character (Unicode) string. For detailed information about MultiByteToWideChar, please see: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/intl/unicod e_17si.asp Q138813 HOWTO: Convert from ANSI to Unicode & Unicode to ANSI for OLE http://support.microsoft.com/default.aspx?scid=kb;EN-US;q138813
Unicode称为宽字符型字串,COM里使用的都是Unicode字符串。将ANSI转换到Unicode
(1)通过L这个宏来实现,例如: CLSIDFromProgID( L"MAPI.Folder",&clsid);
(2)通过MultiByteToWideChar函数实现转换,例如:
char *szProgID = "MAPI.Folder";
WCHAR szWideProgID[128];
CLSID clsid;
long lLen = MultiByteToWideChar(CP_ACP,0,szProgID,strlen(szProgID),szWideProgID,sizeof(szWideProgID));
szWideProgID[lLen] = '\0';
(3)通过A2W宏来实现,例如:
USES_CONVERSION;
CLSIDFromProgID( A2W(szProgID),&clsid);
将Unicode转换到ANSI
(1)使用WideCharToMultiByte,例如:
// 假设已经有了一个Unicode 串 wszSomeString...
char szANSIString [MAX_PATH];
WideCharToMultiByte ( CP_ACP, WC_COMPOSITECHECK, wszSomeString, -1, szANSIString, sizeof(szANSIString), NULL, NULL );
(2)使用W2A宏来实现,例如:
USES_CONVERSION;
pTemp=W2A(wszSomeString);
wide-character (Unicode) string.
For detailed information about
MultiByteToWideChar, please see:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/intl/unicod
e_17si.asp
Q138813 HOWTO: Convert from ANSI to Unicode & Unicode to ANSI for OLE
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q138813
USES_CONVERSION;
...
LPWSTR x = A2W(lpsz