C# automation 相关2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Windows.Automation;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            TreeNode tn = new TreeNode();
            AutomationElement r = AutomationElement.RootElement;
            AutomationElement w = r.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "Notepad"));
            AutomationElement menu = w.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.AutomationIdProperty, "MenuBar"));
            System.Windows.Automation.Condition c0 = new PropertyCondition(AutomationElement.IsControlElementProperty, true);

            TreeWalker walker = new TreeWalker(c0);
            
            walkElements(w, tn, walker);
            ts(tn);
        }

        private void ts(TreeNode r) {
            foreach (TreeNode e in r.Nodes) {
                Console.WriteLine(e.ToString());
                ts(e);
            }
        }

        private void walkElements(AutomationElement r, TreeNode t, TreeWalker w)
        {

            AutomationElement e = w.GetFirstChild(r);
            while (e != null)
            {
                TreeNode cTN = t.Nodes.Add(e.Current.Name);
                walkElements(e, cTN, w);
                e = w.GetNextSibling(e);
            }
        }
		

    }
}

 代码的作用从上图就看的清清楚楚了，是的，他就是遍历控件的方法。它无情地使用了递归方法，对于我们这些外行者，还是有些一个头变成两个大的感觉了。

 不过对照一下记事本的截图，又觉得放松了很多。