获取Windows 10中的串行端口列表 [英] Getting a list of serial ports in Windows 10

问题描述

以下代码已经在许多Windows 10计算机上运行，​​但我刚刚发现它无法正常工作，因为这个特定的Windows 10副本的注册表没有SERIALCOMM文件夹。

The following code has worked on a number of Windows 10 machines, but I have just found one where it does not work because the registry of this particular copy of windows 10 does not have a SERIALCOMM folder.

系统COM端口必须列在某些​​地方，如果不在SERIALCOMM下，那么在哪里？

The system COM ports must be listed some where so, if not under SERIALCOMM, then where?

void CSerialPort::GetCOMPorts(CStringArray &strarrayCOMPorts, CWnd *pWnd)
{
	CRegKey regkey;
	DWORD dwI = 0, nBuffSize = BUFF_SIZE;
	char szKeyName[BUFF_SIZE], szKeyVal[BUFF_SIZE];
	LONG nCode = ERROR_SUCCESS;
	CString strKeyVal, strTemp, strResponse;
	UINT nCOMPort = 0;
	CSerialPort SerialPort;
	
	memset(szKeyName, 0, BUFF_SIZE);
	memset(szKeyVal, 0, BUFF_SIZE);
	if (regkey.Open(HKEY_LOCAL_MACHINE, "HARDWARE\\DEVICEMAP\\SERIALCOMM", KEY_READ) == ERROR_SUCCESS)
	{
		//LONG WINAPI RegEnumValue(_In_        HKEY    hKey,
		//							_In_        DWORD   dwIndex,
		//							_Out_       LPTSTR  lpValueName,
		//							_Inout_     LPDWORD lpcchValueName,
		//							_Reserved_  LPDWORD lpReserved,
		//							_Out_opt_   LPDWORD lpType,
		//							_Out_opt_   LPBYTE  lpData,
		//							_Inout_opt_ LPDWORD lpcbData);
		do
		{
			nCode = RegEnumValue(regkey.m_hKey, dwI, szKeyName, &nBuffSize, NULL, NULL, NULL, NULL);
			if (nCode != ERROR_NO_MORE_ITEMS)
			{
				nBuffSize = BUFF_SIZE;
				regkey.QueryStringValue(szKeyName, szKeyVal, &nBuffSize);
				nBuffSize = BUFF_SIZE;
				strKeyVal = szKeyVal;
				strTemp = strKeyVal;
				strTemp.Delete(0, 3);
				nCOMPort = atoi(strTemp);
				if ((nCOMPort >= 1) && (SerialPort.Open(strKeyVal)) && (SerialPort.isIrrigationController(strKeyVal)))
				{
					SerialPort.Write("id#");
					if (SerialPort.Read(strResponse, 2000) > 0)
					{
						strarrayCOMPorts.Add(strResponse + " (" + strKeyVal + ")");
					}
				}
				SerialPort.Close();
				dwI++;
			}
		} 
		while (nCode != ERROR_NO_MORE_ITEMS);
	}
	else
		AfxMessageBox("Cannot access the Windows registry...", MB_OK);
}

推荐答案

参见< a href ="http://www.naughter.com/enumser.html"> http://www.naughter.com/enumser.html

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