近段时间由于工作的需要访问其它进程的相关数据,现将其中的一些代码写下来,以备参考.
代码如下(系统自动生成的没有列出来):
代码如下(系统自动生成的没有列出来):
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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namespace WindowsApplication1
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{
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public partial class Form1 : Form
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{
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[DllImport("User32.dll", EntryPoint = "FindWindow")]
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private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
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[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
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private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
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[DllImport("User32.dll", EntryPoint = "SendMessage")]
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private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);
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public Form1()
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{
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InitializeComponent();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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const int WM_GETTEXT = 0x000D;
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string lpszParentClass = "Form";
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string lpszParentWindow = "Form1";
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string lpszClass = "Button";
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string getTxt = "";
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IntPtr ParenthWnd = new IntPtr(0);
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IntPtr EdithWnd = new IntPtr(0);
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ParenthWnd = FindWindow(lpszParentClass, lpszParentWindow);
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if (!ParenthWnd.Equals(IntPtr.Zero))
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{
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EdithWnd = FindWindowEx(ParenthWnd, EdithWnd, lpszClass, "");
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if (!EdithWnd.Equals(IntPtr.Zero))
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{
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SendMessage(EdithWnd, WM_GETTEXT, (IntPtr)0, getTxt);
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if (getTxt.Length != 0)
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{
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MessageBox.Show(getTxt);
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}
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}
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}
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}
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}
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}
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转:http://www.cnblogs.com/dongjie/archive/2006/12/16/594197.html