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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
namespace StatsViewer {
/// <summary>
/// Win32 API constants, structs, and wrappers for access via C#.
/// </summary>
class Win32 {
#region Constants
public enum MapAccess {
FILE_MAP_COPY = 0x0001,
FILE_MAP_WRITE = 0x0002,
FILE_MAP_READ = 0x0004,
FILE_MAP_ALL_ACCESS = 0x001f,
}
public const int GENERIC_READ = unchecked((int)0x80000000);
public const int GENERIC_WRITE = unchecked((int)0x40000000);
public const int OPEN_ALWAYS = 4;
public static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1);
#endregion
[DllImport("kernel32", SetLastError=true, CharSet=CharSet.Auto)]
public static extern IntPtr CreateFile (
String lpFileName, int dwDesiredAccess, int dwShareMode,
IntPtr lpSecurityAttributes, int dwCreationDisposition,
int dwFlagsAndAttributes, IntPtr hTemplateFile);
[DllImport("kernel32", SetLastError=true)]
public static extern IntPtr MapViewOfFile (
IntPtr hFileMappingObject, int dwDesiredAccess, int dwFileOffsetHigh,
int dwFileOffsetLow, int dwNumBytesToMap);
[DllImport("kernel32", SetLastError=true, CharSet=CharSet.Auto)]
public static extern IntPtr OpenFileMapping (
int dwDesiredAccess, bool bInheritHandle, String lpName);
[DllImport("kernel32", SetLastError=true)]
public static extern bool UnmapViewOfFile (IntPtr lpBaseAddress);
[DllImport("kernel32", SetLastError = true)]
public static extern bool CloseHandle(IntPtr handle);
}
}
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