using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace ClassLibrary1
{
/// <summary>
/// 禁用设备
/// zgke@sina.com
/// qq:116149
/// </summary>
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 = 0x
1A,
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;
};
/// <summary>
/// 获取设备的名称和ID
/// </summary>
/// <returns></returns>
public static IList<HardwareInfo> GetHardwareTable()
{
IList<HardwareInfo> _ReturnList = new List<HardwareInfo>();
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;
/// <summary>
/// 设备名称
/// </summary>
public string DeviceName { get { return
m_DeviceName; } }
/// <summary>
/// 设备GUID
/// </summary>
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;
}
/// <summary>
/// 设置状态
/// </summary>
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);
}
}
}
}
然后新建WINFORM程序，添加dataGridView1和一个按钮事件
事件下写代码
private void button1_Click(object sender, EventArgs e)
{
IList<HardwareClass.HardwareInfo> _HardwareInfo = 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);//修改为启动状态
}
}
}
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