C# 实现winform自动悬浮

winform自动悬浮，主要代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace SupremeWindowsForms
{
    public partial class Form : System.Windows.Forms.Form
    {
        #region Fields and Properties
        /// <summary>
        /// 锚定位置
        /// </summary>
        internal AnchorStyles StopAanhor = AnchorStyles.None;

        /// <summary>
        /// 计时器
        /// </summary>
        public Timer TimerAnchor { get; set; }

        #endregion

        #region Methods
        public Form()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 控制窗体隐藏与复现
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Time_Tick(object sender, EventArgs e)
        {
            if (this.Bounds.Contains(Cursor.Position))
            {
                switch (this.StopAanhor)
                {
                    case AnchorStyles.Top:
                        //窗体在最上方隐藏时，鼠标接触自动出现
                        this.Location = new Point(this.Location.X, 0);
                        break;
                    //窗体在最左方隐藏时，鼠标接触自动出现
                    case AnchorStyles.Left:
                        this.Location = new Point(0, this.Location.Y);
                        break;
                    //窗体在最右方隐藏时，鼠标接触自动出现
                    case AnchorStyles.Right:
                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - this.Width, this.Location.Y);
                        break;
                }
            }
            else
            {
                //窗体隐藏时在靠近边界的一侧边会出现2像素原因：感应鼠标，同时2像素不会影响用户视线
                switch (this.StopAanhor)
                {
                    //窗体在顶部时时，隐藏在顶部，底部边界出现2像素
                    case AnchorStyles.Top:
                        this.Location = new Point(this.Location.X, (this.Height - 2) * (-1));
                        break;
                    //窗体在最左边时时，隐藏在左边，右边边界出现2像素
                    case AnchorStyles.Left:
                        this.Location = new Point((-1) * (this.Width - 2), this.Location.Y);
                        break;
                    //窗体在最右边时时，隐藏在右边，左边边界出现2像素
                    case AnchorStyles.Right:
                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - 2, this.Location.Y);
                        break;
                }
            }
        }

        /// <summary>
        /// 设置窗体位置的类型
        /// </summary>
        private void SetAnchor()
        {
            if (this.Top <= 0)
            {
                StopAanhor = AnchorStyles.Top;
            }
            else if (this.Left <= 0)
            {
                StopAanhor = AnchorStyles.Left;
            }
            else if (this.Left >= Screen.PrimaryScreen.Bounds.Width - this.Width)
            {
                StopAanhor = AnchorStyles.Right;
            }
            else
            {
                StopAanhor = AnchorStyles.None;
            }
        }
        #endregion

        #region Events
        private void Form_LocationChanged(object sender, EventArgs e)
        {
            SetAnchor();
        }

        private void Form_Load(object sender, EventArgs e)
        {
            TimerAnchor = new Timer { Interval = 100 };
            TimerAnchor.Tick += Time_Tick;
            //timer1.Tick += Timer1_Tick;
            TimerAnchor.Start();
        }
        #endregion
   }
}