71 lines
2.4 KiB
C#
71 lines
2.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Runtime.InteropServices;
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using System.Security;
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namespace SuperMap.RealEstate.SecurityDevice
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{
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#region SecurityDeviceHelper
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[SecuritySafeCritical]
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internal class SecurityDeviceHelper
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{
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//public static ISecurityDevice CreateSecurityDevice()
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//{
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// //换设备时候，操作如下
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// //1、修改UsbKeyDevice为新设备类库
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// //2、引用相关类库。本范例引用 Components.UsbKey.dll
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// return new UsbKeyDevice();
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//}
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public const int WM_DEVICECHANGE = 0x0219;
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public const int DBT_DEVICEARRIVAL = 0x8000; // systemdetected a new device
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public const int DBT_DEVICEREMOVECOMPLETE = 0x8004; // device is gone
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public const int DEVICE_NOTIFY_WINDOW_HANDLE = 0;
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public const int DEVICE_NOTIFY_SERVICE_HANDLE = 1;
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public const int DBT_DEVTYP_DEVICEINTERFACE = 0x00000005; // deviceinterface class
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public static Guid GUID_DEVINTERFACE_USB_DEVICE = new Guid("4D1E55B2-F16F-11CF-88CB-001111000030");
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//[StructLayout(LayoutKind.Sequential)]
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//public class DEV_BROADCAST_HDR
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//{
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// public int dbcc_size;
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// public int dbcc_devicetype;
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// public int dbcc_reserved;
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//}
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[StructLayout(LayoutKind.Sequential)]
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public struct DEV_BROADCAST_DEVICEINTERFACE
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{
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public int dbcc_size;
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public int dbcc_devicetype;
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public int dbcc_reserved;
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public Guid dbcc_classguid;
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public short dbcc_name;
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}
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//[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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//public class DEV_BROADCAST_DEVICEINTERFACE1
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//{
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// public int dbcc_size;
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// public int dbcc_devicetype;
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// public int dbcc_reserved;
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// [MarshalAs(UnmanagedType.ByValArray, ArraySubType = UnmanagedType.U1, SizeConst = 16)]
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// public byte[] dbcc_classguid;
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// [MarshalAs(UnmanagedType.ByValArray, SizeConst = 128)]
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// public char[] dbcc_name;
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//}
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[DllImport("user32.dll", SetLastError = true)]
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public static extern IntPtr RegisterDeviceNotification(IntPtr hRecipient, IntPtr NotificationFilter, Int32 Flags);
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[DllImport("kernel32.dll")]
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public static extern int GetLastError();
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}
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#endregion
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}
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