如何编写WMI查询以在C#中查找USB调制解调器

问题描述

亲爱的朋友，

我想知道如何通过查询找到USB调制解调器.

我已经编写了WMIquery:

Dear Friends,

I would like to know how to find USB Modems through query.

I have written the WMIquery:

var usbdrives = new ManagementObjectSearcher("SELECT DeviceID FROM Win32_DiskDrive WHERE InterfaceType='USB'");

这适用于USB PenDrives，但是我需要找到调制解调器.

如何编写USB调制解调器的WMI查询?
如果有任何有关此方面的信息，请与我分享.

问候，

AnilKumar.D

This is working for USB PenDrives, but I need to find the modems.

How to write WMI query for USB Modems?
If any information regarding this please share with me.

Regards,

AnilKumar.D

推荐答案

C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\mgmtclassgen.exe Win32_POTSModem /L CS /P c:\POTSModem\Win32_POTSModem.cs

然后可以在代码中使用它:

and then you can use that in your code:

using System;
using System.Collections.Generic;
using System.Management;
using ROOT.CIMV2.Win32;

public class MyClass
{
  public static void Main()
  {
    foreach (POTSModem modem in POTSModem.GetInstances()) {
      Console.WriteLine(modem.Description);
    }
  }
}

string modems = "";
           
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_POTSModem ");

                foreach (ManagementObject queryObj in searcher.Get())
                {
                    if ((string)queryObj["Status"] == "OK")
                    {
                        
                        listBox1.Items.Add(queryObj["AttachedTo"] + " - " + System.Convert.ToString(queryObj["Description"]));
                    }
                }
             
            
            return modems;

using System;
using System.Management;
using System.Windows.Forms;

namespace WMISample
{
    public class MyWMIQuery
    {
        public static void Main()
        {
            try
            {
                ManagementObjectSearcher searcher =
                    new ManagementObjectSearcher("root\\CIMV2",
                    "SELECT * FROM Win32_POTSModem WHERE AttachedTo = 'COM7'");

                foreach (ManagementObject queryObj in searcher.Get())
                {
                    Console.WriteLine("-----------------------------------");
                    Console.WriteLine("Win32_POTSModem instance");
                    Console.WriteLine("-----------------------------------");
                    Console.WriteLine("AttachedTo: {0}", queryObj["AttachedTo"]);
                }
            }
            catch (ManagementException e)
            {
                MessageBox.Show("An error occurred while querying for WMI data: " + e.Message);
            }
        }
    }
}

这篇关于如何编写WMI查询以在C#中查找USB调制解调器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！