winform无边框窗口拖动

无边框的窗口想拖动，只需要在置顶的容器上添加对应的mousedown 和 mousemove 事件就可以实现了。代码如下：

        //拖动窗口
        private Point mPoint = new Point();

        private void panel1_MouseDown(object sender, MouseEventArgs e)
        {
            mPoint.X = e.X;
            mPoint.Y = e.Y;
        }

        private void panel1_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                Point myPosittion = MousePosition;
                myPosittion.Offset(-mPoint.X, -mPoint.Y);
                Location = myPosittion;
            }
        }