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Win32桌面编程：ACLUI.DLL,EditSecurity(IntPtr hwndOwner, ISecurityInformation psi)

news 来源：原创 2025/5/13 9:28:47

在Windows编程中，我们通常需要借助通用对话框的力量，今天我们就聊一下“安全属性表”通用对话框的使用心得。

当我们调用EditSecurity函数时：

1.EditSecurity将调用ISecurityInformation中的GetObjectInformation函数

在编写 ISecurityInformation.GetObjectInformation(out SI_OBJECT_INFO pObjectInfo)时

我们需要将结构返还给函数，GetObjectInformation用于初始化属性表的样式

看一下结构：

public struct SI_OBJECT_INFO
{
public uint dwFlags;
public IntPtr hInstance;
public string pszServerName;
public string pszObjectName;
public string pszPageTitle;
public Guid guidObjectType;
}

解释一下：dwFlags为属性表样式的标志SI_OBJECT_INFO 结构

pszObjectName为属性表的标题

pszPageTitle为属性页的标题

2.接着EditSecurity将调用ISecurityInformation中的GetSecurity函数

GetSecurity(uint RequestedInformation, out IntPtr ppSecurityDescriptor, bool fDefault)

其他我们不需要过于处理，专注于“ppSecurityDescriptor”，一个句柄，

例如：

public string _filePath;

public void GetSecurity(uint RequestedInformation, out IntPtr ppSecurityDescriptor, bool fDefault)
{
ppSecurityDescriptor = IntPtr.Zero;

// 获取文件的安全描述符
var fileSecurity = File.GetAccessControl(_filePath);
var rawSecurityDescriptor = fileSecurity.GetSecurityDescriptorBinaryForm();

// 将安全描述符复制到非托管内存
ppSecurityDescriptor = Marshal.AllocHGlobal(rawSecurityDescriptor.Length);
Marshal.Copy(rawSecurityDescriptor, 0, ppSecurityDescriptor, rawSecurityDescriptor.Length);
}

3.当我们将这两个函数处理好以后基本就可以弹出这个对话框了

如下（Powershell+C#）：

Add-Type -TypeDefinition @"
using System;
using System.IO;
using System.Runtime.InteropServices;
// 定义必要的结构和接口
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    public struct SI_OBJECT_INFO
    {
        public uint dwFlags;
        public IntPtr hInstance;
        public string pszServerName;
        public string pszObjectName;
        public string pszPageTitle;
        public Guid guidObjectType;
    }

    [ComImport, Guid("965FC360-16FF-11d0-91CB-00AA00BBB723"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface ISecurityInformation
    {
        void GetObjectInformation(out SI_OBJECT_INFO pObjectInfo);
        void GetSecurity(uint RequestedInformation, out IntPtr ppSecurityDescriptor, [MarshalAs(UnmanagedType.Bool)] bool fDefault);
        void SetSecurity(uint SecurityInformation, IntPtr pSecurityDescriptor);
        void GetAccessRights(ref Guid pguidObjectType, uint dwFlags, out IntPtr ppAccess, out uint pcAccesses, out uint piDefaultAccess);
        void MapGeneric(ref Guid pguidObjectType, ref byte pAceFlags, ref uint pMask);
        void GetInheritTypes(out IntPtr ppInheritTypes, out uint pcInheritTypes);
        void PropertySheetPageCallback(IntPtr hwnd, uint uMsg, uint uPage);
    }

    public class FileSecurityInfo : ISecurityInformation
    {

        public FileSecurityInfo()
        {
        }
        public const uint SI_PAGE_TITLE = 0x00000800;
        public const uint SI_EDIT_ALL = 0x00000003;

        // 实现接口方法
        public void GetObjectInformation(out SI_OBJECT_INFO pObjectInfo)
        {
            pObjectInfo = new SI_OBJECT_INFO()
            {
                dwFlags = Flags,  // SI_EDIT_PERMS
                pszObjectName = ObjectName,
                pszServerName = null,
                pszPageTitle = PageTitle,
                guidObjectType = Guid.Empty
            };
        }
        public string PageTitle;
        public string ObjectName;
        public string _filePath;
        public uint Flags = SI_PAGE_TITLE | SI_EDIT_ALL;



            public void GetSecurity(uint RequestedInformation, out IntPtr ppSecurityDescriptor, bool fDefault)
            {
            ppSecurityDescriptor = IntPtr.Zero;

            // 获取文件的安全描述符
            
            var fileSecurity = File.GetAccessControl(_filePath);
            var rawSecurityDescriptor = fileSecurity.GetSecurityDescriptorBinaryForm();

            // 将安全描述符复制到非托管内存
            ppSecurityDescriptor = Marshal.AllocHGlobal(rawSecurityDescriptor.Length);
            Marshal.Copy(rawSecurityDescriptor, 0, ppSecurityDescriptor, rawSecurityDescriptor.Length);
        }

        public void SetSecurity(uint SecurityInformation, IntPtr pSecurityDescriptor)
        {
            //if (!SetFileSecurity(_filePath, SecurityInformation, pSecurityDescriptor))
            //{
            //    throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
            //}
        }

        // 其他接口方法留空（需根据需求实现）
        public void GetAccessRights(ref Guid pguidObjectType, uint dwFlags, out IntPtr ppAccess, out uint pcAccesses, out uint piDefaultAccess)
        {
            ppAccess = IntPtr.Zero;
            pcAccesses = 0;
            piDefaultAccess = 0;
        }
        public void MapGeneric(ref Guid pguidObjectType, ref byte pAceFlags, ref uint pMask) { }
        public void GetInheritTypes(out IntPtr ppInheritTypes, out uint pcInheritTypes)
        {
            ppInheritTypes = IntPtr.Zero;
            pcInheritTypes = 0;
        }
        public void PropertySheetPageCallback(IntPtr hwnd, uint uMsg, uint uPage) { }

        [DllImport("aclui.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool EditSecurity(IntPtr hwndOwner, ISecurityInformation psi);
    }

"@ 

# 使用示例

# 创建安全信息对象
$securityInfo = New-Object FileSecurityInfo
$securityInfo.PageTitle = "于子轩的安全属性对话框"
$securityInfo.Flags = 0x00000010L  #高级选项
$securityInfo.Flags += 0x00000080L  #高级选项
$securityInfo.Flags += 0x00000001l  #高级选项-所有者
$securityInfo.Flags += 0x00000800L  #PageTitle属性作为标题
#$securityInfo.Flags += 0x00000008l  #禁止修改
$securityInfo.Flags += 0x00000020L  #高级选项-还原默认所有者
$securityInfo.Flags += 0x00040000L  #高级选项-还原默认值按钮
$securityInfo.Flags += 0x08000000L  #高级选项-还原默认值按钮
$securityInfo.ObjectName =  "AclUI.h";
#$securityInfo.Flags += 0x00200000l  #隐藏“高级安全设置”页面上的“特殊权限”选项卡

#$securityInfo.Flags = 0x02000000L  #所有者
$securityInfo._filePath = "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.22621.0\\um\\AclUI.h";

[FileSecurityInfo]::EditSecurity([IntPtr]::Zero, $securityInfo)