如何获取对其他应用程序中嵌入的Internet Explorer实例的COM引用-Java 学习之路

Outlook的Dynamics插件通过Internet Explorer嵌入窗口显示内容 . 我正在尝试找到一种方法来获取该嵌入式窗口的SHDocVw.InternetExplorer COM对象 . 我们的应用程序独立运行（它不是Outlook或IE插件），我们根本无法控制嵌入式IE窗口的创建 .

我用的时候：

Dim SWs As SHDocVw.ShellWindows
Set SWs = New SHDocVw.ShellWindows

SWs集合不包含对Outlook中嵌入式浏览器的引用（尽管我确实引用了常规浏览器窗口） .

使用Spy，我看到嵌入式Outlook窗口的以下窗口层次结构：

Window "xxxxxx" WindowsForms10.Window.8.app.0.5c39d4_r64_ad2
  - "" Shell Embedding
    - "" Shell DocObject View
      - "" Internet Explorer_Server

层次结构中的最后两个窗口（Shell DocObject View和Internet Explorer_Server）与正在运行的Internet Explorer实例中的嵌入式查看器完全相同 .

看起来必须有一些方法来获得这些嵌入式浏览器的COM引用 - 任何帮助或想法将不胜感激 .

2 回答

3

见KB 249232 . 您可以使用辅助功能从 Internet Explorer_Server 窗口获取 IHTMLDocument2 指针 . 如果您运行的是与目标进程不同的完整性级别，那么它将起作用't pretty, and it won' .

根据您正在做的事情，您可能会使目标应用程序不稳定，所以要小心 . 并注意编组 .

回复于 2024-05-05T17:23:47+08:00

以下是使用Hwnd获取HTMLDocument的方法：

using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Diagnostics;
    using System.Drawing;
    using System.Runtime.InteropServices;
    using System.Text;
    using System.Windows.Forms;
    using mshtml;

    namespace HookBrowser
    {
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        #region API CALLS

        [DllImport("user32.dll", EntryPoint = "GetClassNameA")]
        public static extern int GetClassName(IntPtr hwnd, StringBuilder lpClassName, int nMaxCount);

        /*delegate to handle EnumChildWindows*/
        public delegate int EnumProc(IntPtr hWnd, ref IntPtr lParam);

        [DllImport("user32.dll")]
        public static extern int EnumChildWindows(IntPtr hWndParent, EnumProc lpEnumFunc, ref  IntPtr lParam);
        [DllImport("user32.dll", EntryPoint = "RegisterWindowMessageA")]
        public static extern int RegisterWindowMessage(string lpString);
        [DllImport("user32.dll", EntryPoint = "SendMessageTimeoutA")]
        public static extern int SendMessageTimeout(IntPtr hwnd, int msg, int wParam, int lParam, int fuFlags, int uTimeout, out int lpdwResult);
        [DllImport("OLEACC.dll")]
        public static extern int ObjectFromLresult(int lResult, ref Guid riid, int wParam, ref IHTMLDocument2 ppvObject);
        public const int SMTO_ABORTIFHUNG = 0x2;
        public Guid IID_IHTMLDocument = new Guid("626FC520-A41E-11CF-A731-00A0C9082637");

        #endregion

        public IHTMLDocument2 document;

        private void button1_Click(object sender, EventArgs e)
        {
            document = documentFromDOM();
            /// check that we have hold of the IHTMLDocument2...
            if (!(bool)(document == null))
            {
                this.Text = document.url;
            }
        }

        private IHTMLDocument2 documentFromDOM()
        {
            Process[] processes = Process.GetProcessesByName("iexplore");
            if (processes.Length > 0)
            {
                IntPtr hWnd = processes[0].MainWindowHandle;
                int lngMsg = 0;
                int lRes;

                EnumProc proc = new EnumProc(EnumWindows);
                EnumChildWindows(hWnd, proc, ref hWnd);
                if (!hWnd.Equals(IntPtr.Zero))
                {
                    lngMsg = RegisterWindowMessage("WM_HTML_GETOBJECT");
                    if (lngMsg != 0)
                    {
                        SendMessageTimeout(hWnd, lngMsg, 0, 0, SMTO_ABORTIFHUNG, 1000, out lRes);
                        if (!(bool)(lRes == 0))
                        {
                            int hr = ObjectFromLresult(lRes, ref IID_IHTMLDocument, 0, ref document);
                            if ((bool)(document == null))
                            {
                                MessageBox.Show("NoLDocument Found!", "Warning");
                            }
                        }
                    }
                }
            }
            return document;
        }

        private int EnumWindows(IntPtr hWnd, ref IntPtr lParam)
        {
            int retVal = 1;
            StringBuilder classname = new StringBuilder(128);
            GetClassName(hWnd, classname, classname.Capacity);
            /// check if the instance we have found is Internet Explorer_Server
            if ((bool)(string.Compare(classname.ToString(), "Internet Explorer_Server") == 0))
            {
                lParam = hWnd;
                retVal = 0;
            }
            return retVal;
        }
    }
}

回复于 2024-05-05T17:23:47+08:00

如何获取对其他应用程序中嵌入的Internet Explorer实例的COM引用

2 回答

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