C# 有没有代码能启用或停用设备管理器的东西

全部使用 setupapi.dll 里的函数使用方法IList _HardwareInfo = Zgke.SysInfo.HardwareClass.GetHardwareTable();dataGridView1.DataSource = _HardwareInfo;
for (int i = 0; i != _HardwareInfo.Count; i++)
{
if (_HardwareInfo[i].DeviceName.IndexOf("打印机端口") != -1)
{
_HardwareInfo[i].SetEnabled(false);
MessageBox.Show("去看看 设备管理器的状态:)");
_HardwareInfo[i].SetEnabled(true);
}
}下面是全部的类using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;namespace Zgke.SysInfo
{
public class HardwareClass
{[DllImport("setupapi.dll", SetLastError = true)]
public static extern IntPtr SetupDiGetClassDevs(ref Guid ClassGuid, uint Enumerator, IntPtr HwndParent, DIGCF Flags);[DllImport("setupapi.dll", SetLastError = true)]
public static extern bool SetupDiEnumDeviceInfo(IntPtr DeviceInfoSet, uint MemberIndex, SP_DEVINFO_DATA DeviceInfoData);[DllImport("setupapi.dll", SetLastError = true)]
public static extern bool SetupDiGetDeviceRegistryProperty(IntPtr DeviceInfoSet, SP_DEVINFO_DATA DeviceInfoData, SPDRP Property, uint PropertyRegDataType, StringBuilder PropertyBuffer, uint PropertyBufferSize, IntPtr RequiredSize);[DllImport("setupapi.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern bool SetupDiSetClassInstallParams(IntPtr DeviceInfoSet, IntPtr DeviceInfoData, IntPtr ClassInstallParams, int ClassInstallParamsSize);[DllImport("setupapi.dll", CharSet = CharSet.Auto)]
public static extern Boolean SetupDiCallClassInstaller(DIF InstallFunction, IntPtr DeviceInfoSet, IntPtr DeviceInfoData);[DllImport("setupapi.dll", SetLastError = true)]
public static extern int SetupDiDestroyDeviceInfoList(IntPtr lpInfoSet);public enum DIGCF
{
DIGCF_DEFAULT = 0x1,
DIGCF_PRESENT = 0x2,
DIGCF_ALLCLASSES = 0x4,
DIGCF_PROFILE = 0x8,
DIGCF_DEVICEINTERFACE = 0x10
}public enum SPDRP
{
SPDRP_DEVICEDESC = 0,
SPDRP_HARDWAREID = 0x1,
SPDRP_COMPATIBLEIDS = 0x2,
SPDRP_UNUSED0 = 0x3,
SPDRP_SERVICE = 0x4,
SPDRP_UNUSED1 = 0x5,
SPDRP_UNUSED2 = 0x6,
SPDRP_CLASS = 0x7,
SPDRP_CLASSGUID = 0x8,
SPDRP_DRIVER = 0x9,
SPDRP_CONFIGFLAGS = 0xA,
SPDRP_MFG = 0xB,
SPDRP_FRIENDLYNAME = 0xC,
SPDRP_LOCATION_INFORMATION = 0xD,
SPDRP_PHYSICAL_DEVICE_OBJECT_NAME = 0xE,
SPDRP_CAPABILITIES = 0xF,
SPDRP_UI_NUMBER = 0x10,
SPDRP_UPPERFILTERS = 0x11,
SPDRP_LOWERFILTERS = 0x12,
SPDRP_BUSTYPEGUID = 0x13,
SPDRP_LEGACYBUSTYPE = 0x14,
SPDRP_BUSNUMBER = 0x15,
SPDRP_ENUMERATOR_NAME = 0x16,
SPDRP_SECURITY = 0x17,
SPDRP_SECURITY_SDS = 0x18,
SPDRP_DEVTYPE = 0x19,
SPDRP_EXCLUSIVE = 0x1A,
SPDRP_CHARACTERISTICS = 0x1B,
SPDRP_ADDRESS = 0x1C,
SPDRP_UI_NUMBER_DESC_FORMAT = 0x1E,
SPDRP_MAXIMUM_PROPERTY = 0x1F
}public enum DICS
{
DICS_ENABLE = 0x1,
DICS_DISABLE = 0x2,
DICS_PROPCHANGE = 0x3,
DICS_START = 0x4,
DICS_STOP = 0x5,
DICS_FLAG_GLOBAL = DICS_ENABLE,
DICS_FLAG_CONFIGSPECIFIC = DICS_DISABLE,
DICS_FLAG_CONFIGGENERAL = DICS_START
}public enum DIF
{
DIF_SELECTDEVICE = 0x1,
DIF_INSTALLDEVICE = 0x2,
DIF_ASSIGNRESOURCES = 0x3,
DIF_PROPERTIES = 0x4,
DIF_REMOVE = 0x5,
DIF_FIRSTTIMESETUP = 0x6,
DIF_FOUNDDEVICE = 0x7,
DIF_SELECTCLASSDRIVERS = 0x8,
DIF_VALIDATECLASSDRIVERS = 0x9,
DIF_INSTALLCLASSDRIVERS = 0xA,
DIF_CALCDISKSPACE = 0xB,
DIF_DESTROYPRIVATEDATA = 0xC,
DIF_VALIDATEDRIVER = 0xD,
DIF_MOVEDEVICE = 0xE,
DIF_DETECT = 0xF,
DIF_INSTALLWIZARD = 0x10,
DIF_DESTROYWIZARDDATA = 0x11,
DIF_PROPERTYCHANGE = 0x12,
DIF_ENABLECLASS = 0x13,
DIF_DETECTVERIFY = 0x14,
DIF_INSTALLDEVICEFILES = 0x15,
DIF_UNREMOVE = 0x16,
DIF_SELECTBESTCOMPATDRV = 0x17,
DIF_ALLOW_INSTALL = 0x18,
DIF_REGISTERDEVICE = 0x19,
DIF_NEWDEVICEWIZARD_PRESELECT = 0x1A,
DIF_NEWDEVICEWIZARD_SELECT = 0x1B,
DIF_NEWDEVICEWIZARD_PREANALYZE = 0x1C,
DIF_NEWDEVICEWIZARD_POSTANALYZE = 0x1D,
DIF_NEWDEVICEWIZARD_FINISHINSTALL = 0x1E,
DIF_UNUSED1 = 0x1F,
DIF_INSTALLINTERFACES = 0x20,
DIF_DETECTCANCEL = 0x21,
DIF_REGISTER_COINSTALLERS = 0x22,
DIF_ADDPROPERTYPAGE_ADVANCED = 0x23,
DIF_ADDPROPERTYPAGE_BASIC = 0x24,
DIF_RESERVED1 = 0x25,
DIF_TROUBLESHOOTER = 0x26,
DIF_POWERMESSAGEWAKE = 0x27
}[StructLayout(LayoutKind.Sequential)]
public class SP_DEVINFO_DATA
{
public int cbSize;
public Guid classGuid;
public int devInst;
public ulong reserved;
};[StructLayout(LayoutKind.Sequential)]
public class SP_PROPCHANGE_PARAMS
{
public SP_CLASSINSTALL_HEADER ClassInstallHeader = new SP_CLASSINSTALL_HEADER();
public int StateChange;
public int Scope;
public int HwProfile;
};[StructLayout(LayoutKind.Sequential)]
public class SP_CLASSINSTALL_HEADER
{
public int cbSize;
public int InstallFunction;
};
///
/// 获取设备的名称和ID
///
///
public static IList GetHardwareTable()
{
IList _ReturnList = new List();
Guid _NewGuid = Guid.Empty;
IntPtr _MainIntPtr = SetupDiGetClassDevs(ref _NewGuid, 0, IntPtr.Zero, DIGCF.DIGCF_ALLCLASSES | DIGCF.DIGCF_PRESENT);
if (_MainIntPtr.ToInt32() == -1) return _ReturnList;
SP_DEVINFO_DATA _DevinfoData = new SP_DEVINFO_DATA();
_DevinfoData.classGuid = System.Guid.Empty;
_DevinfoData.cbSize = 28;
_DevinfoData.devInst = 0;
_DevinfoData.reserved = 0;
StringBuilder _DeviceName = new StringBuilder("");
_DeviceName.Capacity = 1000;
uint i = 0;
while (SetupDiEnumDeviceInfo(_MainIntPtr, i, _DevinfoData))
{
SetupDiGetDeviceRegistryProperty(_MainIntPtr, _DevinfoData, SPDRP.SPDRP_DEVICEDESC, 0, _DeviceName, (uint)_DeviceName.Capacity, IntPtr.Zero);_ReturnList.Add(new HardwareInfo(_DeviceName.ToString(), _DevinfoData.classGuid, _DevinfoData.cbSize, _DevinfoData.devInst, _DevinfoData.reserved));i++;
}
SetupDiDestroyDeviceInfoList(_MainIntPtr);
return _ReturnList;
}public class HardwareInfo
{
private string m_DeviceName = string.Empty;
private Guid m_ClassGuid = Guid.Empty;
private int m_Size = 0;
private int m_DevInst = 0;
private ulong m_Reserved = 0;///
/// 设备名称
///
public string DeviceName { get { return m_DeviceName; } }///
/// 设备GUID
///
public Guid ClassGuid { get { return m_ClassGuid; } }public HardwareInfo(string p_DeviceName, Guid p_ClassGuid, int p_Size, int p_DevInst, ulong p_Reserved)
{
m_ClassGuid = p_ClassGuid;
m_DeviceName = p_DeviceName;
m_DevInst = p_DevInst;
m_Reserved = p_Reserved;
m_Size = p_Size;
}///
/// 设置状态
///
public void SetEnabled(bool p_Enabled)
{
Guid _NewGuid = Guid.Empty;
IntPtr _MainIntPtr = SetupDiGetClassDevs(ref _NewGuid, 0, IntPtr.Zero, DIGCF.DIGCF_ALLCLASSES | DIGCF.DIGCF_PRESENT);
if (_MainIntPtr.ToInt32() == -1) return;
SP_DEVINFO_DATA _DevinfoData = new SP_DEVINFO_DATA();
_DevinfoData.classGuid = System.Guid.Empty;
_DevinfoData.cbSize = 28;
_DevinfoData.devInst = 0;
_DevinfoData.reserved = 0;
StringBuilder _DeviceName = new StringBuilder("");
_DeviceName.Capacity = 1000;uint i = 0;
while (SetupDiEnumDeviceInfo(_MainIntPtr, i, _DevinfoData))
{
SetupDiGetDeviceRegistryProperty(_MainIntPtr, _DevinfoData, SPDRP.SPDRP_DEVICEDESC, 0, _DeviceName, (uint)_DeviceName.Capacity, IntPtr.Zero);if (_DevinfoData.classGuid.ToString() == this.ClassGuid.ToString())
{
SetHardwareEnabled(_MainIntPtr, p_Enabled, _DevinfoData);
break;
}
i++;
}
SetupDiDestroyDeviceInfoList(_MainIntPtr);
}private void SetHardwareEnabled(IntPtr m_MainIntPtr, bool p_Enabled, SP_DEVINFO_DATA p_DevInfoData)
{
SP_PROPCHANGE_PARAMS _HardwareParams = new SP_PROPCHANGE_PARAMS();
_HardwareParams.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(SP_CLASSINSTALL_HEADER));
_HardwareParams.ClassInstallHeader.InstallFunction = (int)DIF.DIF_PROPERTYCHANGE;
_HardwareParams.StateChange = (int)DICS.DICS_DISABLE;
_HardwareParams.Scope = (int)DICS.DICS_FLAG_CONFIGSPECIFIC;if (p_Enabled)
{
_HardwareParams.StateChange = (int)DICS.DICS_ENABLE;
_HardwareParams.Scope = (int)DICS.DICS_FLAG_GLOBAL;IntPtr _HardwareParamsIntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(_HardwareParams));
Marshal.StructureToPtr(_HardwareParams, _HardwareParamsIntPtr, true);
IntPtr _DevInfoDataIntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(p_DevInfoData));if (SetupDiSetClassInstallParams(m_MainIntPtr, _DevInfoDataIntPtr, _HardwareParamsIntPtr, Marshal.SizeOf(typeof(SP_PROPCHANGE_PARAMS))))
{
SetupDiCallClassInstaller(DIF.DIF_PROPERTYCHANGE, m_MainIntPtr, _DevInfoDataIntPtr);
}
_HardwareParams.ClassInstallHeader.cbSize = Marshal.SizeOf(typeof(SP_CLASSINSTALL_HEADER));
_HardwareParams.ClassInstallHeader.InstallFunction = (int)DIF.DIF_PROPERTYCHANGE;
_HardwareParams.StateChange = (int)DICS.DICS_ENABLE;
_HardwareParams.Scope = (int)DICS.DICS_FLAG_CONFIGSPECIFIC;
_HardwareParams.HwProfile = 0;
}IntPtr _SetHardwareParamsIntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(_HardwareParams));
Marshal.StructureToPtr(_HardwareParams, _SetHardwareParamsIntPtr, true);IntPtr _SetDevInfoDataIntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(p_DevInfoData));
Marshal.StructureToPtr(p_DevInfoData, _SetDevInfoDataIntPtr, true);SetupDiSetClassInstallParams(m_MainIntPtr, _SetDevInfoDataIntPtr, _SetHardwareParamsIntPtr, Marshal.SizeOf(typeof(SP_PROPCHANGE_PARAMS)));
SetupDiCallClassInstaller(DIF.DIF_PROPERTYCHANGE, m_MainIntPtr, _SetDevInfoDataIntPtr);
}}
}
}