适用于无边框窗体，自定义标题栏
之前在网上找的，如http://www.cnblogs.com/yuxuan/archive/2010/09/25/1834346.html这篇博文，开始移动时会瞬移几个像素.....
using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using System.Drawing; namespace EW.XIS.Common { /// /// 说明：窗体拖动类，通过这个类提供的方法实现窗体上任意控件可辅助拖动窗体 /// public class DragFormClass { private static bool isMouseDown = false; private static Point mouseOffset; private static Form _form; /// /// 在窗体上增加拖拽事件 /// /// 控件对象 public static void bindControl(Control control) { //如果控件为空 if (control == null) { return; } _form = control.FindForm(); //增加鼠标拖动窗体移动事件 control.MouseMove += new MouseEventHandler(control_MouseMove); control.MouseDown += new MouseEventHandler(control_MouseDown); control.MouseUp += new MouseEventHandler(control_MouseUp); } /// /// 鼠标按下之时，保存鼠标相对于窗体的位置 /// /// /// private static void control_MouseDown(object sender, MouseEventArgs e) { if (Control.MouseButtons == MouseButtons.Left) { Point p=_form.PointToClient(Control.MousePosition); mouseOffset = new Point(-p.X, -p.Y); isMouseDown = true; } } /// /// 移动鼠标的时候改变窗体位置 /// /// /// private static void control_MouseMove(object sender, MouseEventArgs e) { if (Control.MouseButtons == MouseButtons.Left) { if (isMouseDown) { Point mouse = Control.MousePosition; mouse.Offset(mouseOffset.X, mouseOffset.Y); _form.Location = new Point(mouse.X, mouse.Y); } } } /// /// 松开鼠标的时候，重设事件 /// /// /// private static void control_MouseUp(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { isMouseDown = false; } } } }
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