VC++通过注册表枚举串口

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CStringArray m_Serial_Port;

BOOL Enum_Serial_Port() //枚举串口

{

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("错误：无法打开有关的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);

}