C#USB设备枚举Kernel32的PInvoke

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