如何找到可用的COM端口？ [英] How to find available COM ports?

问题描述

如何找到在我的电脑可用的COM端口？我使用的框架1.1版。是否有可能找到所有的COM端口？如果可能的话，帮我解决这个问题。

How to find available COM ports in my PC? I am using framework v1.1. Is it possible to find all COM ports? If possible, help me solve the problem.

推荐答案

正如其他人的建议，你可以使用WMI。你可以找到一个样本的在CodeProject上

As others suggested, you can use WMI. You can find a sample in CodeProject

try
{
    ManagementObjectSearcher searcher =
        new ManagementObjectSearcher("root\\WMI",
        "SELECT * FROM MSSerial_PortName");

    foreach (ManagementObject queryObj in searcher.Get())
    {
        Console.WriteLine("-----------------------------------");
        Console.WriteLine("MSSerial_PortName instance");
        Console.WriteLine("-----------------------------------");
        Console.WriteLine("InstanceName: {0}", queryObj["InstanceName"]);

        Console.WriteLine("-----------------------------------");
        Console.WriteLine("MSSerial_PortName instance");
        Console.WriteLine("-----------------------------------");
        Console.WriteLine("PortName: {0}", queryObj["PortName"]);

        //If the serial port's instance name contains USB 
        //it must be a USB to serial device
        if (queryObj["InstanceName"].ToString().Contains("USB"))
        {
            Console.WriteLine(queryObj["PortName"] + " 
    		is a USB to SERIAL adapter/converter");
        }
    }
}
catch (ManagementException e)
{
    MessageBox.Show("An error occurred while querying for WMI data: " + e.Message);
}

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