c++读注册表

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1. CString key;
   
2. key.Format(_T("Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\xxx"));
   
3. HKEY hKey;
   
4. LONG rc = RegOpenKey(HKEY_LOCAL_MACHINE, key, &hKey);
   
5. if (ERROR_SUCCESS == rc)
   
6. {
   
7.         WCHAR szBuffer[MAX_PATH];
   
8.         DWORD dwBufferSize = sizeof(szBuffer);
   
9.         rc = RegQueryValueEx(hKey, _T("Path"), NULL, NULL, (LPBYTE)szBuffer, &dwBufferSize);
   
10.         if (ERROR_SUCCESS == rc)
    
11.         {
    
12.                 path = szBuffer;  //处理读出来的值
    
13.                 RegCloseKey(hKey);
    
14.          }
    
15. }

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