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发表于 2023-5-6 15:03:49
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本帖最后由 jufr12315 于 2023-5-6 15:04 编辑
3楼的代码可以用,我截取一部分测试可以获取USB设备的信息,但是不知道如何与电脑USB端口位置对应
- using System;
- using System.Collections.Generic;
- using System.Management;
- using System.Text.RegularExpressions;
- /// <summary>
- /// 即插即用设备信息结构
- /// </summary>
- public struct PnPEntityInfo
- {
- public String PNPDeviceID; // 设备ID
- public String Name; // 设备名称
- public String Description; // 设备描述
- public String Service; // 服务
- public String Status; // 设备状态
- public UInt16 VendorID; // 供应商标识
- public UInt16 ProductID; // 产品编号
- public Guid ClassGuid; // 设备安装类GUID
- }
-
- /// <summary>
- /// 基于WMI获取USB设备信息
- /// </summary>
- public partial class USB
- {
- #region UsbDevice
- /// <summary>
- /// 获取所有的USB设备实体(过滤没有VID和PID的设备)
- /// </summary>
- public static PnPEntityInfo[] AllUsbDevices
- {
- get
- {
- return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, Guid.Empty);
- }
- }
-
- /// <summary>
- /// 查询USB设备实体(设备要求有VID和PID)
- /// </summary>
- /// <param name="VendorID">供应商标识,MinValue忽视</param>
- /// <param name="ProductID">产品编号,MinValue忽视</param>
- /// <param name="ClassGuid">设备安装类Guid,Empty忽视</param>
- /// <returns>设备列表</returns>
- public static PnPEntityInfo[] WhoUsbDevice(UInt16 VendorID, UInt16 ProductID, Guid ClassGuid)
- {
- List<PnPEntityInfo> UsbDevices = new List<PnPEntityInfo>();
-
- // 获取USB控制器及其相关联的设备实体
- ManagementObjectCollection USBControllerDeviceCollection = new ManagementObjectSearcher("SELECT * FROM Win32_USBControllerDevice").Get();
- if (USBControllerDeviceCollection != null)
- {
- foreach (ManagementObject USBControllerDevice in USBControllerDeviceCollection)
- { // 获取设备实体的DeviceID
- String Dependent = (USBControllerDevice["Dependent"] as String).Split(new Char[] { '=' })[1];
-
- // 过滤掉没有VID和PID的USB设备
- Match match = Regex.Match(Dependent, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}");
- if (match.Success)
- {
- UInt16 theVendorID = Convert.ToUInt16(match.Value.Substring(4, 4), 16); // 供应商标识
- if (VendorID != UInt16.MinValue && VendorID != theVendorID) continue;
-
- UInt16 theProductID = Convert.ToUInt16(match.Value.Substring(13, 4), 16); // 产品编号
- if (ProductID != UInt16.MinValue && ProductID != theProductID) continue;
-
- ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get();
- if (PnPEntityCollection != null)
- {
- foreach (ManagementObject Entity in PnPEntityCollection)
- {
- Guid theClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID
- if (ClassGuid != Guid.Empty && ClassGuid != theClassGuid) continue;
-
- PnPEntityInfo Element;
- Element.PNPDeviceID = Entity["PNPDeviceID"] as String; // 设备ID
- Element.Name = Entity["Name"] as String; // 设备名称
- Element.Description = Entity["Description"] as String; // 设备描述
- Element.Service = Entity["Service"] as String; // 服务
- Element.Status = Entity["Status"] as String; // 设备状态
- Element.VendorID = theVendorID; // 供应商标识
- Element.ProductID = theProductID; // 产品编号
- Element.ClassGuid = theClassGuid; // 设备安装类GUID
-
- UsbDevices.Add(Element);
- }
- }
- }
- }
- }
-
- if (UsbDevices.Count == 0) return null; else return UsbDevices.ToArray();
- }
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