Winform窗体实现类似停靠在屏幕边缘时自动隐藏的功能

该功能主要用到了计时器和Frm_LocationChanged事件。代码如下；

Code
     private void FrmLocation_Load(object sender, EventArgs e)
        {
            this.TopMost = true;
            Timer checkDockTimer = new Timer();
            checkDockTimer.Tick += new EventHandler(StopRectTimer_Tick);
            checkDockTimer.Interval = 100;
            checkDockTimer.Enabled = true;
        }


        private void StopRectTimer_Tick(object sender, EventArgs e)
        {
            //如果鼠标在窗体上，则根据停靠位置显示整个窗体
            if (this.Bounds.Contains(Cursor.Position))
            {
                switch (this.StopDock)
                {
                    case AnchorStyles.Top:
                        this.Location = new Point(this.Location.X, 0);
                        break;
                    case AnchorStyles.Bottom:
                        this.Location = new Point(this.Location.X, Screen.PrimaryScreen.Bounds.Height - this.Height);
                        break;
                    case AnchorStyles.Left:
                        this.Location = new Point(0, this.Location.Y);
                        break;
                    case AnchorStyles.Right:
                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - this.Width, this.Location.Y);
                        break;
                }
            }
            else  //如果鼠标离开窗体，则根据停靠位置隐藏窗体，但须留出部分窗体边缘以便鼠标选中窗体
            {
                switch (this.StopDock)
                {
                    case AnchorStyles.Top:
                        this.Location = new Point(this.Location.X, (this.Height - 3) * (-1));
                        break;
                    case AnchorStyles.Bottom:
                        this.Location = new Point(this.Location.X, Screen.PrimaryScreen.Bounds.Height - 5);
                        break;
                    case AnchorStyles.Left:
                        this.Location = new Point((-1) * (this.Width - 3), this.Location.Y);
                        break;
                    case AnchorStyles.Right:
                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - 2, this.Location.Y);
                        break;
                }
            }
        }

        /**//// <summary>
        /// 更改窗体的位置时，根据和各个窗体边缘的距离赋值停靠的位置
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmLocation_LocationChanged(object sender, EventArgs e)
        {
            if (this.Top <= 0)                     
            {
                this.StopDock = AnchorStyles.Top;
            }
            else if (this.Bottom >= Screen.PrimaryScreen.Bounds.Height)
            {
                this.StopDock = AnchorStyles.Bottom;
            }
            else if (this.Left <= 0)
            {
                this.StopDock = AnchorStyles.Left;
            }
            else if (this.Left >= Screen.PrimaryScreen.Bounds.Width - this.Width)
            {
                this.StopDock = AnchorStyles.Right;
            }
            else
            {
                this.StopDock = AnchorStyles.None;
            }
        }

转载于:https://www.cnblogs.com/gossip/archive/2009/08/01/1536578.html