通過註冊表枚舉串口

CStringArray m_Serial_Port;BOOL Enum_Serial_Port() //枚舉串口{m_Serial_Port.RemoveAll();HKEY hKey;LPCTSTR data_Set = _T("HARDWARE\\DEVICEMAP\\SERIALCOMM\\");LONG ret0 = RegOpenKeyEx(HKEY_LOCAL_MACHINE, data_Set, 0, KEY_READ, &hKey);if(ret0 != ERROR_SUCCESS){AfxMessageBox("錯誤：無法開啟有關的hKEY");return FALSE;}DWORD dwIndex = 0;while(1){LONG Status;CHAR Name[256]={0};UCHAR szPortName[80]={0};DWORD dwName;DWORD dwSizeofPortName;DWORD Type;dwName = sizeof(Name);dwSizeofPortName = sizeof(szPortName);Status = RegEnumValue(hKey, dwIndex++, Name, &dwName, NULL, &Type,szPortName, &dwSizeofPortName);if((Status == ERROR_SUCCESS)||(Status == ERROR_MORE_DATA)){CString str = szPortName;m_Serial_Port.Add(str);}else{break;}}RegCloseKey(hKey);return(m_Serial_Port.GetSize() > 0 ? TRUE:FALSE);}