C#：基于WMI查询USB设备
来源：http://blog.csdn.net/jhqin/article/details/6734673
/* ----------------------------------------------------------
文件名称：WMIUsbQuery.cs 作者：秦建辉 MSN：splashcn@msn.com
QQ：36748897 博客：http://blog.csdn.net/jhqin 开发环境：
Visual Studio V2010
.NET Framework 4 Client Profile 版本历史：
V1.3 2011年09月08日
代码优化 V1.2 2011年09月02日
增加基于服务的查询 V1.1 2011年09月01日
增加基于设备ID的查询，解决LIKE子句中反斜杠字符引发的WQL查询异常 V1.0 2011年08月30日
基于WMI实现对USB设备的查询
------------------------------------------------------------ */
using System;
using System.Management;
using System.Text.RegularExpressions;
using System.Collections.Generic; namespace Splash.IO.PORTS
{
/// <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[] { '=' })[]; // 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(, ), ); // 供应商标识
if (VendorID != UInt16.MinValue && VendorID != theVendorID) continue; UInt16 theProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 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 == ) return null; else return UsbDevices.ToArray();
} /// <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>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoUsbDevice(UInt16 VendorID, UInt16 ProductID)
{
return WhoUsbDevice(VendorID, ProductID, Guid.Empty);
} /// <summary>
/// 查询USB设备实体（设备要求有VID和PID）
/// </summary>
/// <param name="ClassGuid">设备安装类Guid，Empty忽视</param>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoUsbDevice(Guid ClassGuid)
{
return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, ClassGuid);
} /// <summary>
/// 查询USB设备实体（设备要求有VID和PID）
/// </summary>
/// <param name="PNPDeviceID">设备ID，可以是不完整信息</param>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoUsbDevice(String PNPDeviceID)
{
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[] { '=' })[];
if (!String.IsNullOrEmpty(PNPDeviceID))
{ // 注意：忽视大小写
if (Dependent.IndexOf(PNPDeviceID, , PNPDeviceID.Length - , StringComparison.OrdinalIgnoreCase) == -) continue;
} // 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)
{
ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get();
if (PnPEntityCollection != null)
{
foreach (ManagementObject Entity in PnPEntityCollection)
{
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 = Convert.ToUInt16(match.Value.Substring(, ), ); // 供应商标识
Element.ProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 产品编号 // 产品编号
Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID UsbDevices.Add(Element);
}
}
}
}
} if (UsbDevices.Count == ) return null; else return UsbDevices.ToArray();
} /// <summary>
/// 根据服务定位USB设备
/// </summary>
/// <param name="ServiceCollection">要查询的服务集合</param>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoUsbDevice(String[] ServiceCollection)
{
if (ServiceCollection == null || ServiceCollection.Length == )
return WhoUsbDevice(UInt16.MinValue, UInt16.MinValue, Guid.Empty); 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[] { '=' })[]; // 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)
{
ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE DeviceID=" + Dependent).Get();
if (PnPEntityCollection != null)
{
foreach (ManagementObject Entity in PnPEntityCollection)
{
String theService = Entity["Service"] as String; // 服务
if (String.IsNullOrEmpty(theService)) continue; foreach (String Service in ServiceCollection)
{ // 注意：忽视大小写
if (String.Compare(theService, Service, true) != ) 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 = theService; // 服务
Element.Status = Entity["Status"] as String; // 设备状态
Element.VendorID = Convert.ToUInt16(match.Value.Substring(, ), ); // 供应商标识
Element.ProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 产品编号
Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID UsbDevices.Add(Element);
break;
}
}
}
}
}
} if (UsbDevices.Count == ) return null; else return UsbDevices.ToArray();
}
#endregion #region PnPEntity
/// <summary>
/// 所有即插即用设备实体（过滤没有VID和PID的设备）
/// </summary>
public static PnPEntityInfo[] AllPnPEntities
{
get
{
return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, Guid.Empty);
}
} /// <summary>
/// 根据VID和PID及设备安装类GUID定位即插即用设备实体
/// </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>
/// <remarks>
/// HID：{745a17a0-74d3-11d0-b6fe-00a0c90f57da}
/// Imaging Device：{6bdd1fc6-810f-11d0-bec7-08002be2092f}
/// Keyboard：{4d36e96b-e325-11ce-bfc1-08002be10318}
/// Mouse：{4d36e96f-e325-11ce-bfc1-08002be10318}
/// Network Adapter：{4d36e972-e325-11ce-bfc1-08002be10318}
/// USB：{36fc9e60-c465-11cf-8056-444553540000}
/// </remarks>
public static PnPEntityInfo[] WhoPnPEntity(UInt16 VendorID, UInt16 ProductID, Guid ClassGuid)
{
List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体
String VIDPID;
if (VendorID == UInt16.MinValue)
{
if (ProductID == UInt16.MinValue)
VIDPID = "'%VID[_]____&PID[_]____%'";
else
VIDPID = "'%VID[_]____&PID[_]" + ProductID.ToString("X4") + "%'";
}
else
{
if (ProductID == UInt16.MinValue)
VIDPID = "'%VID[_]" + VendorID.ToString("X4") + "&PID[_]____%'";
else
VIDPID = "'%VID[_]" + VendorID.ToString("X4") + "&PID[_]" + ProductID.ToString("X4") + "%'";
} String QueryString;
if (ClassGuid == Guid.Empty)
QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE" + VIDPID;
else
QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE" + VIDPID + " AND ClassGuid='" + ClassGuid.ToString("B") + "'"; ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get();
if (PnPEntityCollection != null)
{
foreach (ManagementObject Entity in PnPEntityCollection)
{
String PNPDeviceID = Entity["PNPDeviceID"] as String;
Match match = Regex.Match(PNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}");
if (match.Success)
{
PnPEntityInfo Element; Element.PNPDeviceID = PNPDeviceID; // 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 = Convert.ToUInt16(match.Value.Substring(, ), ); // 供应商标识
Element.ProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 产品编号
Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element);
}
}
} if (PnPEntities.Count == ) return null; else return PnPEntities.ToArray();
} /// <summary>
/// 根据VID和PID定位即插即用设备实体
/// </summary>
/// <param name="VendorID">供应商标识，MinValue忽视</param>
/// <param name="ProductID">产品编号，MinValue忽视</param>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoPnPEntity(UInt16 VendorID, UInt16 ProductID)
{
return WhoPnPEntity(VendorID, ProductID, Guid.Empty);
} /// <summary>
/// 根据设备安装类GUID定位即插即用设备实体
/// </summary>
/// <param name="ClassGuid">设备安装类Guid，Empty忽视</param>
/// <returns>设备列表</returns>
public static PnPEntityInfo[] WhoPnPEntity(Guid ClassGuid)
{
return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, ClassGuid);
} /// <summary>
/// 根据设备ID定位设备
/// </summary>
/// <param name="PNPDeviceID">设备ID，可以是不完整信息</param>
/// <returns>设备列表</returns>
/// <remarks>
/// 注意：对于下划线，需要写成“[_]”，否则视为任意字符
/// </remarks>
public static PnPEntityInfo[] WhoPnPEntity(String PNPDeviceID)
{
List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体
String QueryString;
if (String.IsNullOrEmpty(PNPDeviceID))
{
QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%VID[_]____&PID[_]____%'";
}
else
{ // LIKE子句中有反斜杠字符将会引发WQL查询异常
QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%" + PNPDeviceID.Replace('\\', '_') + "%'";
} ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get();
if (PnPEntityCollection != null)
{
foreach (ManagementObject Entity in PnPEntityCollection)
{
String thePNPDeviceID = Entity["PNPDeviceID"] as String;
Match match = Regex.Match(thePNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}");
if (match.Success)
{
PnPEntityInfo Element; Element.PNPDeviceID = thePNPDeviceID; // 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 = Convert.ToUInt16(match.Value.Substring(, ), ); // 供应商标识
Element.ProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 产品编号
Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element);
}
}
} if (PnPEntities.Count == ) return null; else return PnPEntities.ToArray();
} /// <summary>
/// 根据服务定位设备
/// </summary>
/// <param name="ServiceCollection">要查询的服务集合，null忽视</param>
/// <returns>设备列表</returns>
/// <remarks>
/// 跟服务相关的类：
/// Win32_SystemDriverPNPEntity
/// Win32_SystemDriver
/// </remarks>
public static PnPEntityInfo[] WhoPnPEntity(String[] ServiceCollection)
{
if (ServiceCollection == null || ServiceCollection.Length == )
return WhoPnPEntity(UInt16.MinValue, UInt16.MinValue, Guid.Empty); List<PnPEntityInfo> PnPEntities = new List<PnPEntityInfo>(); // 枚举即插即用设备实体
String QueryString = "SELECT * FROM Win32_PnPEntity WHERE PNPDeviceID LIKE '%VID[_]____&PID[_]____%'";
ManagementObjectCollection PnPEntityCollection = new ManagementObjectSearcher(QueryString).Get();
if (PnPEntityCollection != null)
{
foreach (ManagementObject Entity in PnPEntityCollection)
{
String PNPDeviceID = Entity["PNPDeviceID"] as String;
Match match = Regex.Match(PNPDeviceID, "VID_[0-9|A-F]{4}&PID_[0-9|A-F]{4}");
if (match.Success)
{
String theService = Entity["Service"] as String; // 服务
if (String.IsNullOrEmpty(theService)) continue; foreach (String Service in ServiceCollection)
{ // 注意：忽视大小写
if (String.Compare(theService, Service, true) != ) continue; PnPEntityInfo Element; Element.PNPDeviceID = PNPDeviceID; // 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 = theService; // 服务
Element.Status = Entity["Status"] as String; // 设备状态
Element.VendorID = Convert.ToUInt16(match.Value.Substring(, ), ); // 供应商标识
Element.ProductID = Convert.ToUInt16(match.Value.Substring(, ), ); // 产品编号
Element.ClassGuid = new Guid(Entity["ClassGuid"] as String); // 设备安装类GUID PnPEntities.Add(Element);
break;
}
}
}
} if (PnPEntities.Count == ) return null; else return PnPEntities.ToArray();
}
#endregion
}
}
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