1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 using System; 6 using System.Collections.Generic; 7 using System.Runtime.InteropServices; 8 using System.Text; 9 10 namespace StatsViewer { 11 /// <summary> 12 /// Win32 API constants, structs, and wrappers for access via C#. 13 /// </summary> 14 class Win32 { 15 #region Constants 16 public enum MapAccess { 17 FILE_MAP_COPY = 0x0001, 18 FILE_MAP_WRITE = 0x0002, 19 FILE_MAP_READ = 0x0004, 20 FILE_MAP_ALL_ACCESS = 0x001f, 21 } 22 23 public const int GENERIC_READ = unchecked((int)0x80000000); 24 public const int GENERIC_WRITE = unchecked((int)0x40000000); 25 public const int OPEN_ALWAYS = 4; 26 public static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1); 27 #endregion 28 29 [DllImport("kernel32", SetLastError=true, CharSet=CharSet.Auto)] 30 public static extern IntPtr CreateFile ( 31 String lpFileName, int dwDesiredAccess, int dwShareMode, 32 IntPtr lpSecurityAttributes, int dwCreationDisposition, 33 int dwFlagsAndAttributes, IntPtr hTemplateFile); 34 35 [DllImport("kernel32", SetLastError=true)] 36 public static extern IntPtr MapViewOfFile ( 37 IntPtr hFileMappingObject, int dwDesiredAccess, int dwFileOffsetHigh, 38 int dwFileOffsetLow, int dwNumBytesToMap); 39 40 [DllImport("kernel32", SetLastError=true, CharSet=CharSet.Auto)] 41 public static extern IntPtr OpenFileMapping ( 42 int dwDesiredAccess, bool bInheritHandle, String lpName); 43 44 [DllImport("kernel32", SetLastError=true)] 45 public static extern bool UnmapViewOfFile (IntPtr lpBaseAddress); 46 47 [DllImport("kernel32", SetLastError = true)] 48 public static extern bool CloseHandle(IntPtr handle); 49 } 50 } 51
