标签:style blog http color io os for 数据 sp
一、调用user32.dll
(1)引用
using System.Runtime.InteropServices;
(2)调用方法
1、获取窗口标题
            [DllImport( "user32.dll" )]  
            public static extern int GetWindowText( IntPtr hWnd, StringBuilder lpString,int nMaxCount );
注:hWnd 窗口句柄 lpString 窗口标题 nMaxCount 最大值
2、获取类名
             [DllImport( "user32.dll" )]  
            public static extern int GetClassName( IntPtr hWnd, StringBuilder lpString,int nMaxCount );
注:hWnd 句柄 lpString 类名 nMaxCount 最大值
3、根据坐标获取窗口句柄
             [DllImport( "user32.dll" )]  
            public static extern IntPtr WindowFromPoint(Point point);
注:point 坐标
二、显示数据
(1) 获取鼠标坐标
               int x = Cursor.Position.X;
               int y = Cursor.Position.Y;
               this.textBox4.Text = string.Format( "({0},{1})" , x, y);
(2) 获取句柄
               Point p = new Point(x,y);
               IntPtr formHandle = WindowFromPoint(p);
               this.textBox1.Text = formHandle.ToString();
(3) 得到窗口标题
               GetWindowText(formHandle,title,title.Capacity);
               this.textBox2.Text = title.ToString();
(4)得到窗体的类名
             StringBuilder cllassName = new StringBuilder();
            GetClassName(formHandle,cllassName,cllassName.Capacity);
            this.textBox3.Text = cllassName.ToString();
(5)Load事件
this.timer1.Enabled = !this.timer1.Enabled;
注:动态显示信息
三、结果

三、源码下载:http://pan.baidu.com/s/1qWNTe4s
标签:style blog http color io os for 数据 sp
原文地址:http://www.cnblogs.com/QQ248604315/p/3993367.html