C#编的API例程 网页SPY（提取网页元素）

C#编的API例程 网页SPY /* 程序名称：网页SPY(C#版) * 作者：ecjob (86年出生,广东 寻 女人/项目/工作) * 日期：2008-10-18 * */using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO;using System.Runtime.InteropServices;using mshtml;namespace WebSpy{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } #region DLL函数 [DllImport("user32.dll", EntryPoint = "SetCapture")] public static extern int API_置鼠标到捕获窗口(IntPtr hwnd窗口句柄); [DllImport("user32.dll", EntryPoint = "ReleaseCapture")] public static extern int API_释放鼠标(); [DllImport("user32", EntryPoint = "RegisterWindowMessage")] public static extern int API_注册字符串消息(string lpString); //注意这个函数ObjectFromLresult的声明. [DllImport("OLEACC.DLL", EntryPoint = "ObjectFromLresult")] public static extern int API_取IEDocument(int lResult, ref System.Guid riid, int wParam, [MarshalAs(UnmanagedType.Interface), In, Out]ref Object ppvObject); [DllImport("user32.dll", EntryPoint = "WindowFromPoint")] public static extern IntPtr API_取坐标窗口句柄(Point point); [DllImport("user32.dll", EntryPoint = "SendMessageTimeout")] public static extern int API_发送可超时消息(IntPtr hwnd,int msg,int wParam,int lParam,int fuFlags,int uTimeout,ref int lpdwResult); [DllImport("user32.dll", EntryPoint = "GetClassName")] public static extern int API_取窗口类名(IntPtr hwnd,StringBuilder lpClassName,int nMaxCount); [DllImport("user32.dll", EntryPoint = "GetWindowRect")] public static extern int API_取窗口矩形(IntPtr hwnd,ref Rectangle lpRect); #endregion #region 私有变量 private bool m_bln捕获鼠标 = false; #endregion #region 函数 private void fun取网页元素() { Rectangle o_rect = new Rectangle(); Point o_pot当前鼠标坐标 = Cursor.Position; Point o_pot坐标 = new Point(); IntPtr o_inthwnd = fun取光标处句柄(); if (fun取窗口类名(o_inthwnd).Equals("Internet Explorer_Server")) { foreach (Control o_ctrl in groupBox2.Controls) { if (o_ctrl.GetType() == typeof(System.Windows.Forms.TextBox)) { ((TextBox)o_ctrl).Text = ""; } } API_取窗口矩形(o_inthwnd, ref o_rect); o_pot坐标.X = o_pot当前鼠标坐标.X - o_rect.Left; o_pot坐标.Y = o_pot当前鼠标坐标.Y - o_rect.Top; mshtml.IHTMLDocument2 o_doc对象 = (mshtml.IHTMLDocument2)fun取IES对象(o_inthwnd); IHTMLElement o_Element对象 = o_doc对象.elementFromPoint(o_pot坐标.X, o_pot坐标.Y); //以下其实自己喜欢取什么就取什么 txt窗口句柄.Text = o_inthwnd.ToString(); txt页面地址.Text = o_doc对象.url.ToString(); txt元素.Text = o_Element对象.tagName; txtID.Text = o_Element对象.id; txt相关数据.Text = o_Element对象.innerText; txt引用代码.Text = o_Element对象.outerHTML; } } private object fun取IES对象(IntPtr intIES句柄) { Object domObject = new Object(); int int资源编号 = 0; Guid guidIEDocument2 = new Guid(); //IHTMLDocument2的接口id int WM_Html_GETOBJECT = API_注册字符串消息("WM_Html_GETOBJECT"); //开始查找指定的ie窗体 API_发送可超时消息(intIES句柄, WM_Html_GETOBJECT, 0, 0, 2, 1000, ref int资源编号); int lreturn = API_取IEDocument(int资源编号, ref guidIEDocument2, 0, ref domObject); return domObject; } private IntPtr fun取光标处句柄() { return (API_取坐标窗口句柄(Cursor.Position)); } private string fun取窗口类名(IntPtr Hwnd) { StringBuilder strClassName = new StringBuilder(256); API_取窗口类名(Hwnd, strClassName, strClassName.Capacity); return strClassName.ToString(); } //多加的小玩意 private Color fun随机颜色() { Random o_rnd = new Random(unchecked((int)DateTime.Now.Ticks)); byte o_红 = (byte)o_rnd.Next(0, 255); System.Threading.Thread.Sleep(10); byte o_绿 = (byte)o_rnd.Next(0, 255); System.Threading.Thread.Sleep(10); byte o_蓝 = (byte)o_rnd.Next(0, 255); return Color.FromArgb(o_红, o_绿, o_蓝); } #endregion #region 事件 private void picMouse_MouseDown(object sender, MouseEventArgs e) { m_bln捕获鼠标 = true; picMouse.Image = null; picMouse.Cursor = new Cursor(Properties.Resources.鼠标_十字.GetHicon()); API_置鼠标到捕获窗口(picMouse.Handle); } private void picMouse_MouseUp(object sender, MouseEventArgs e) { if (m_bln捕获鼠标) { API_释放鼠标(); m_bln捕获鼠标 = false; picMouse.Cursor = Cursors.Hand; picMouse.Image = Properties.Resources.鼠标_十字; } } private void picMouse_MouseMove(object sender, MouseEventArgs e) { if (m_bln捕获鼠标) { fun取网页元素(); } } private void timer1_Tick(object sender, EventArgs e) { label8.ForeColor = fun随机颜色(); } #endregion }}