自定义TCHAR2BSTRh函数和BSTR内存的释放

 1 inline HRESULT TCHAR2BSTR(TCHAR * szBuf, BSTR * bstrNew)
 2 {
 3     try
 4     {
 5         WCHAR * wszBuf;
 6 #ifndef UNICODE
 7         wszBuf = new WCHAR[512];
 8         MultiByteToWideChar(CP_ACP, 0, szBuf, -1, wszBuf, 512);
 9 #else
10         wszBuf = szBuf;
11 #endif
12 
13         bstrNew = ::SysAllocString(wszBuf);
14 
15 #ifndef UNICODE
16         delete [] wszBuf;
17 #endif
18 
19     }
20     catch (...)
21     {
22         return E_OUTOFMEMORY;
23     }
24 
25     return S_OK;
26 }