C#笔记（10）窗口靠边隐藏

给窗口添加以下事件
MouseEnter//鼠标获得焦点
MouseLeave//鼠标失去焦点
MouseHover//鼠标停留
然后写代码：

        public Timer hoverTimer;
        hoverTimer = new Timer();
        hoverTimer.Interval = 3000;//定时周期3秒
        hoverTimer.Tick += new EventHandler(hover);//到3秒了自动隐藏
        hoverTimer.Enabled = true; //是否不断重复定时器操作
        hoverTimer.Start();
        void hover(object O, EventArgs ev)
        {
            if(this.Location.Y<5)
                this.Location = new Point(this.Location.X, -64);
        }
        private void Form3_MouseEnter(object sender, EventArgs e)
        {
            if (this.Location.Y < -60)//已隐藏
                this.Location = new System.Drawing.Point(this.Location.X, 0);
        }
        private void Form3_MouseHover(object sender, EventArgs e)
        {
            hoverTimer.Stop();//关闭计时器
            hoverTimer.Start();//重新计时
        }
        private void Form3_MouseLeave(object sender, EventArgs e)
        {
            if (this.Location.Y < 5)//靠边的时候
            {
                Point point = this.PointToClient(Control.MousePosition);
                if (!(point.X >= 0 && point.X <= 693 && point.Y >= 0 && point.Y <= 66))//鼠标在窗口内
                    this.Location = new System.Drawing.Point(this.Location.X, -64);
            }
        }