获取句柄，窗体文本

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//获取窗口标题 [DllImport("user32", SetLastError = true)] public static extern int GetWindowText(     IntPtr hWnd,//窗口句柄     StringBuilder lpString,//标题     int nMaxCount //最大值     );

//获取类的名字 [DllImport("user32.dll")] private static extern int GetClassName(     IntPtr hWnd,//句柄     StringBuilder lpString, //类名
    int nMaxCount //最大值     );

//根据坐标获取窗口句柄 [DllImport("user32")] private static extern IntPtr WindowFromPoint( Point Point  //坐标 );

private void timer1_Tick(object sender, EventArgs e) {     int x = Cursor.Position.X;     int y = Cursor.Position.Y;     Point p = new Point(x, y);     IntPtr formHandle = WindowFromPoint(p);//得到窗口句柄     StringBuilder title = new StringBuilder(256);     GetWindowText(formHandle, title, title.Capacity);//得到窗口的标题     StringBuilder className = new StringBuilder(256);     GetClassName(formHandle, className, className.Capacity);//得到窗口的句柄     this.textBox1.Text = title.ToString();
    this.textBox2.Text = formHandle.ToString();     this.textBox3.Text = className.ToString(); }

获取句柄，窗体文本

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原文地址：http://www.cnblogs.com/vok-think/p/4658598.html