C#USB设备枚举Kernel32的PInvoke

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1. using System;  
2. using System.Runtime.InteropServices;  
3. using System.Security;  
4.   
5. namespace Splash  
6. {  
7.     #region Kernel32  
8.     [SuppressUnmanagedCodeSecurity]  
9.     internal static class Kernel32  
10.     {  
11.         /// <summary>  
12.         /// 无效的文件句柄  
13.         /// </summary>  
14.         public static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1);  
15.  
16.         #region CreateFile  
17.         [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]  
18.         public static extern IntPtr CreateFile(  
19.             String fileName,  
20.             [MarshalAs(UnmanagedType.U4)] NativeFileAccess fileAccess,  
21.             [MarshalAs(UnmanagedType.U4)] NativeFileShare fileShare,  
22.             IntPtr securityAttributes,  
23.             [MarshalAs(UnmanagedType.U4)] NativeFileMode creationDisposition,  
24.             NativeFileFlag flags,  
25.             IntPtr template  
26.             );  
27.   
28.         [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]  
29.         public static extern IntPtr CreateFile(  
30.             String fileName,  
31.             [MarshalAs(UnmanagedType.U4)] NativeFileAccess fileAccess,  
32.             [MarshalAs(UnmanagedType.U4)] NativeFileShare fileShare,  
33.             IntPtr securityAttributes,  
34.             [MarshalAs(UnmanagedType.U4)] NativeFileMode creationDisposition,  
35.             IntPtr flags,  
36.             IntPtr template  
37.             );  
38.         #endregion  
39.   
40.         [DllImport("kernel32.dll", SetLastError = true)]  
41.         [return: MarshalAs(UnmanagedType.Bool)]  
42.         public static extern Boolean CloseHandle(IntPtr hFile);  
43.  
44.         #region ReadFile  
45.         [DllImport("kernel32.dll", SetLastError = true)]  
46.         public static extern Boolean ReadFile(  
47.             IntPtr hFile,  
48.             [Out] Byte[] lpBuffer,  
49.             Int32 nNumberOfBytesToRead,  
50.             out Int32 lpNumberOfBytesRead,  
51.             [In] ref System.Threading.NativeOverlapped lpOverlapped  
52.             );  
53.   
54.         [DllImport("kernel32.dll", SetLastError = true)]  
55.         public static extern Boolean ReadFile(  
56.             IntPtr hFile,  
57.             [Out] Byte[] lpBuffer,  
58.             Int32 nNumberOfBytesToRead,  
59.             IntPtr lpNumberOfBytesRead,  
60.             [In] ref System.Threading.NativeOverlapped lpOverlapped  
61.             );  
62.   
63.         [DllImport("kernel32.dll", SetLastError = true)]  
64.         public static extern Boolean ReadFile(  
65.             IntPtr hFile,  
66.             [Out] Byte[] lpBuffer,  
67.             Int32 nNumberOfBytesToRead,  
68.             out Int32 lpNumberOfBytesRead,  
69.             IntPtr lpOverlapped  
70.             );  
71.         #endregion  
72.  
73.         #region WriteFile  
74.         [DllImport("kernel32.dll")]  
75.         public static extern Boolean WriteFile(  
76.             IntPtr hFile,  
77.             Byte[] lpBuffer,  
78.             Int32 nNumberOfBytesToWrite,  
79.             out Int32 lpNumberOfBytesWritten,  
80.             [In] ref System.Threading.NativeOverlapped lpOverlapped  
81.             );  
82.   
83.         [DllImport("kernel32.dll")]  
84.         public static extern Boolean WriteFile(  
85.             IntPtr hFile,  
86.             Byte[] lpBuffer,  
87.             Int32 nNumberOfBytesToWrite,  
88.             IntPtr lpNumberOfBytesWritten,  
89.             [In] ref System.Threading.NativeOverlapped lpOverlapped  
90.             );  
91.   
92.         [DllImport("kernel32.dll")]  
93.         public static extern Boolean WriteFile(  
94.             IntPtr hFile,  
95.             Byte[] lpBuffer,  
96.             Int32 nNumberOfBytesToWrite,  
97.             IntPtr lpNumberOfBytesWritten,  
98.             IntPtr lpOverlapped  
99.             );  
100.         #endregion  
101.   
102.         [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]  
103.         public static extern Boolean GetOverlappedResult(  
104.             IntPtr hFile,  
105.             [In] ref System.Threading.NativeOverlapped lpOverlapped,  
106.             out Int32 lpNumberOfBytesTransferred,  
107.             Boolean bWait  
108.             );          
109.     }  
110.     #endregion  
111.  
112.     #region ENUM  
113.     [Flags]  
114.     internal enum NativeFileAccess : uint  
115.     {  
116.         GENERIC_READ = (0x80000000),  
117.         GENERIC_WRITE = (0x40000000),  
118.         GENERIC_EXECUTE = (0x20000000),  
119.         GENERIC_ALL = (0x10000000),  
120.   
121.         FILE_SPECIAL = 0,  
122.         FILE_APPEND_DATA = (0x0004),    // 文件  
123.         FILE_READ_DATA = (0x0001),      // 文件和管道  
124.         FILE_WRITE_DATA = (0x0002),     // 文件和管道  
125.         FILE_READ_EA = (0x0008),        // 文件和目录  
126.         FILE_WRITE_EA = (0x0010),       // 文件和目录  
127.         FILE_READ_ATTRIBUTES = (0x0080),    // 所有  
128.         FILE_WRITE_ATTRIBUTES = (0x0100),   // 所有  
129.         DELETE = 0x00010000,  
130.         READ_CONTROL = (0x00020000),  
131.         WRITE_DAC = (0x00040000),  
132.         WRITE_OWNER = (0x00080000),  
133.         SYNCHRONIZE = (0x00100000),  
134.         STANDARD_RIGHTS_REQUIRED = (0x000F0000),  
135.         STANDARD_RIGHTS_READ = (READ_CONTROL),  
136.         STANDARD_RIGHTS_WRITE = (READ_CONTROL),  
137.         STANDARD_RIGHTS_EXECUTE = (READ_CONTROL),  
138.         STANDARD_RIGHTS_ALL = (0x001F0000),  
139.         SPECIFIC_RIGHTS_ALL = (0x0000FFFF),  
140.         FILE_GENERIC_READ = (STANDARD_RIGHTS_READ | FILE_READ_DATA | FILE_READ_ATTRIBUTES | FILE_READ_EA | SYNCHRONIZE),  
141.         FILE_GENERIC_WRITE = (STANDARD_RIGHTS_WRITE | FILE_WRITE_DATA | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA | FILE_APPEND_DATA | SYNCHRONIZE),  
142.         SPECIAL = 0  
143.     }  
144.   
145.     internal enum NativeFileMode : uint  
146.     {  
147.         CREATE_NEW = 1,  
148.         CREATE_ALWAYS = 2,  
149.         OPEN_EXISTING = 3,  
150.         OPEN_ALWAYS = 4,  
151.         TRUNCATE_EXISTING = 5,  
152.     }  
153.   
154.     [Flags]  
155.     internal enum NativeFileShare : uint  
156.     {  
157.         NONE = 0,  
158.         FILE_SHARE_READ = 0x00000001,  
159.         FILE_SHARE_WRITE = 0x00000002,  
160.         FILE_SHARE_DEELETE = 0x00000004,  
161.     }  
162.   
163.     [Flags]  
164.     internal enum NativeFileFlag : uint  
165.     {  
166.         FILE_ATTRIBUTE_READONLY = 0x00000001,  
167.         FILE_ATTRIBUTE_HIDDEN = 0x00000002,  
168.         FILE_ATTRIBUTE_SYSTEM = 0x00000004,  
169.         FILE_ATTRIBUTE_DIRECTORY = 0x00000010,  
170.         FILE_ATTRIBUTE_ARCHIVE = 0x00000020,  
171.         FILE_ATTRIBUTE_DEVICE = 0x00000040,  
172.         FILE_ATTRIBUTE_NORMAL = 0x00000080,  
173.         FILE_ATTRIBUTE_TEMPORARY = 0x00000100,  
174.         FILE_ATTRIBUTE_SPARSE_FILE = 0x00000200,  
175.         FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400,  
176.         FILE_ATTRIBUTE_COMPRESSED = 0x00000800,  
177.         FILE_ATTRIBUTE_OFFLINE = 0x00001000,  
178.         FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x00002000,  
179.         FILE_ATTRIBUTE_ENCRYPTED = 0x00004000,  
180.         FILE_FLAG_WRITE_THROUGH = 0x80000000,  
181.         FILE_FLAG_OVERLAPPED = 0x40000000,  
182.         FILE_FLAG_NO_BUFFERING = 0x20000000,  
183.         FILE_FLAG_RANDOM_ACCESS = 0x10000000,  
184.         FILE_FLAG_SEQUENTIAL_SCAN = 0x08000000,  
185.         FILE_FLAG_DELETE_ON_CLOSE = 0x04000000,  
186.         FILE_FLAG_BACKUP_SEMANTICS = 0x02000000,  
187.         FILE_FLAG_POSIX_SEMANTICS = 0x01000000,  
188.         FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000,  
189.         FILE_FLAG_OPEN_NO_RECALL = 0x00100000,  
190.         FILE_FLAG_FIRST_PIPE_INSTANCE = 0x00080000,  
191.     }  
192.     #endregion  
193. }  

C#USB设备枚举Kernel32的PInvoke

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原文地址：http://www.cnblogs.com/lihaishu/p/4500493.html