C# 窗體靠近屏幕邊緣自動隱藏*學習（類似於QQ）

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

namespace WinHide
{
 public partial class MainForm : Form
 {
  public MainForm()
  {
     InitializeComponent();
   }
  
  #region 窗體隱藏部分
  void Timer1Tick(object sender, EventArgs e)
  {
   if(this.Bounds.Contains(Cursor.Position))
   {
    switch(this.StopAnhor)
    {
     case AnchorStyles.Top:
      this.Location = new Point(this.Location.X,0);
      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
   {
    switch(this.StopAnhor)
    {
     case AnchorStyles.Top:
      this.Location = new Point(this.Location.X,(this.Height-4)*(-1));
      break;
     case AnchorStyles.Left:
      this.Location = new Point((this.Width-4)*(-1),this.Location.Y);
      break;
     case AnchorStyles.Right:
      this.Location = new Point(Screen.PrimaryScreen.Bounds.Width-4,this.Location.Y);
      break;
    }
   }
  }
  
  internal AnchorStyles StopAnhor = AnchorStyles.None;
  private void mStopAnhor()
  {
   if(this.Top <= 0)
   {
    StopAnhor = AnchorStyles.Top;
   }
   else if(this.Left <= 0)
   {
    StopAnhor = AnchorStyles.Left;
   }
   else if(this.Right >= Screen.PrimaryScreen.Bounds.Width)
   {
    StopAnhor = AnchorStyles.Right;
   }
   else
   {
    StopAnhor = AnchorStyles.None;
   }
  }
  
  void MainFormLocationChanged(object sender, EventArgs e)
  {
   this.mStopAnhor();
  }
  #endregion

}