将磁盘的当前只读状态设置为“是”

Question

我一直在尝试将磁盘设为只读，几天后我做到了。 我从here获得了参考，并将尝试添加更多功能以用于练习目的！ 我还看到有些人从 Windows 注册表中执行此操作，这有效还是以后不会出现问题？

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        const uint GENERIC_READ = 0x80000000;
        const uint GENERIC_WRITE = 0x40000000;
        const int FILE_SHARE_READ = 0x1;
        const int FILE_SHARE_WRITE = 0x2;

        const uint IOCTL_DISK_SET_DISK_ATTRIBUTES = 0x0007c0f4;
        const ulong DISK_ATTRIBUTE_READ_ONLY = 0x0000000000000002;

        [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern IntPtr CreateFile(
            string lpFileName,
            uint dwDesiredAccess,
            uint dwShareMode,
            IntPtr SecurityAttributes,
            uint dwCreationDisposition,
            uint dwFlagsAndAttributes,
            IntPtr hTemplateFile
        );

        [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool DeviceIoControl(
           IntPtr hDevice,
           uint dwIoControlCode,
           IntPtr lpInBuffer,
           uint nInBufferSize,
           IntPtr lpOutBuffer,
           uint nOutBufferSize,
           out uint lpBytesReturned,
           IntPtr lpOverlapped
        );

        [StructLayout(LayoutKind.Sequential)]
        struct SET_DISK_ATTRIBUTES
        {
            public uint Version;
            [MarshalAs(UnmanagedType.I1)]
            public bool Persist;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
            public byte[] Reserved1;
            public ulong Attributes;
            public ulong AttributesMask;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
            public uint[] Reserved2;
        };

        public Form1()
        {
            InitializeComponent();
        }

        public IntPtr CreateHandle(int diskNumber)
        {
            string filename = @"\\.\\PhysicalDrive" + diskNumber;
            IntPtr handle = CreateFile(
                filename,
                GENERIC_READ | GENERIC_WRITE,
                FILE_SHARE_READ | FILE_SHARE_WRITE,
                IntPtr.Zero,
                3, // OPEN_EXISTING
                0, // No special flags
                IntPtr.Zero
            );

            if (handle == IntPtr.Zero)
            {
                int errorCode = Marshal.GetLastWin32Error();
                MessageBox.Show("Failed to create handle. Error: " + new Win32Exception(errorCode).Message);
            }
            return handle;
        }

        private void SetReadonly(IntPtr handle)
        {
            if (handle == IntPtr.Zero)
            {
                MessageBox.Show("Handle is invalid.");
                return;
            }

            var sda = new SET_DISK_ATTRIBUTES
            {
                Version = (uint)Marshal.SizeOf<SET_DISK_ATTRIBUTES>(),
                Persist = true,
                AttributesMask = DISK_ATTRIBUTE_READ_ONLY,
                Attributes = DISK_ATTRIBUTE_READ_ONLY,
                Reserved1 = new byte[3],
                Reserved2 = new uint[4]
            };

            IntPtr ptrQuery = Marshal.AllocHGlobal(Marshal.SizeOf(sda));
            try
            {
                Marshal.StructureToPtr(sda, ptrQuery, false);
                uint byteReturned;

                // Set the disk to read-only
                bool res = DeviceIoControl(handle, IOCTL_DISK_SET_DISK_ATTRIBUTES, ptrQuery, (uint)Marshal.SizeOf(sda), IntPtr.Zero, 0, out byteReturned, IntPtr.Zero);
                if (!res)
                {
                    MessageBox.Show("Failed to set readonly. Error: " + new Win32Exception(Marshal.GetLastWin32Error()).Message);
                }
            }
            finally
            {
                Marshal.FreeHGlobal(ptrQuery);
            }
        }

        private void DisplayDiskAttributes(int diskNumber,string Msg)
        {
            MessageBox.Show(Msg);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (int.TryParse(textBox1.Text.Trim(), out int diskNumber) && diskNumber >= 0)
            {
                IntPtr handle = CreateHandle(diskNumber);
                SetReadonly(handle); // Set to read-only
                DisplayDiskAttributes(diskNumber, "Set to Read only succesfuul");
            }
            else
            {
                MessageBox.Show("Please enter a valid disk number (e.g., 0, 1, 2).");
            }
        }
    }
}

当我使用 DiskPart 显示属性时，它显示如下：

1. 当前只读状态：是
2. 只读：是
3. 启动盘：否
4. 页面文件磁盘：否
5. 休眠文件盘：无
6. 故障转储磁盘：否
7. 集群磁盘：否

但我想让它像：

1. 当前只读状态：是
2. 只读：否
3. 启动盘：否
4. 页面文件磁盘：否
5. 休眠文件盘：无
6. 故障转储磁盘：否
7. 集群磁盘：否

但是我找不到一种方法来使其成为可能，因为Set_Disk_Attribute结构无法做到这一点！ 还有其他办法吗？ 抱歉写得不好，我是新来的！ 谢谢！

Answer 1

与 坚持=假 你应该会得到预期的结果。