C＃如何读取磁盘扇区?困扰了我好几天的问题了帮帮小弟吧最好能帖上源代码.

Question

C＃如何读取磁盘扇区?困扰了我好几天的问题了帮帮小弟吧最好能帖上源代码.

Answer 1

介绍你一个地方，去“叶帆工作室”看看
http://blog.csdn.net/yefanqiu/archive/2008/03/19/2198364.aspx

Answer 2

用ReadFile就可以了，下面是我写的读MBR记录的C#代码
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;namespace DiskInfo
{
    public static class Native
    {
        public const short FILE_ATTRIBUTE_NORMAL = 0x80;
        public const short INVALID_HANDLE_VALUE = -1;
        public const uint GENERIC_READ = 0x80000000;
        public const uint GENERIC_WRITE = 0x40000000;
        public const uint CREATE_NEW = 1;
        public const uint CREATE_ALWAYS = 2;
        public const uint OPEN_EXISTING = 3;
        public const uint FILE_BEGIN = 0;
        public const uint FILE_CURRENT=1;
        public const uint FILE_END = 2;        [DllImport("Kernel32.dll")]
        extern static IntPtr CreateFile(string fileName, uint accessFlag, uint shareMode, IntPtr security,
            uint createFlag, uint attributeFlag, IntPtr tempfile);        [DllImport("Kernel32.dll")]
        extern static bool ReadFile(IntPtr handle, [Out] byte[] buffer, uint bufferLength, 
            ref uint length, IntPtr overLapped);        [DllImport("Kernel32.dll")]
        extern static bool CloseHandle(IntPtr handle);        [DllImport("Kernel32.dll")]
        extern static uint SetFilePointer(IntPtr handle, int offset, IntPtr distance, uint flag);
        
        /// <summary>
        /// Read Disk MBR(Main Boot Record)
        /// </summary>
        /// <returns>512 byte for MBR record</returns>
        public static byte[] ReadMBR()
        {
            //HANDLE hDev=CreateFile("\\\\.\\A:",GENERIC_READ,FILE_SHARE_WRITE,0,OPEN_EXISTING,0,0);            IntPtr DiskHandle = CreateFile(@"\\.\PhysicalDrive0", GENERIC_READ,
                0, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
            byte[] buffer = new byte[512];
            uint length =0;
            SetFilePointer(DiskHandle, 0, IntPtr.Zero, FILE_BEGIN);
            ReadFile(DiskHandle, buffer, 512, ref length, IntPtr.Zero);
            CloseHandle(DiskHandle);
            return buffer;
        }
    }
}