C # implements pop-up window in lower right corner

http://wenku.baidu.com/view/c1ad1227482fb4daa58d4bfe.html  /// <summary>     ///  enumeration that describes the form of message window loading     /// </summary>     public enum loadmode    {        ///  <summary>        ///  Warnings          /// </summary>        Warning,         /// <summary>         ///  Errors         /// </summary>         Error,        /// <summary>         ///  Tips         ///  </summary>        prompt    }    /// < summary>    ///  Message Prompt window     /// </summary>     public partial class formmessagebox : form    {         /// <summary>         ///  Construction Methods         /// </summary>         public formmessagebox ()          {            initializecomponent ();         }         #region  ****** Word   Segment ***********************        /// < summary>        ///  Form Load Mode         /// </ Summary>        private static loadmode formmode  = LoadMode.Prompt;        /// <summary>         ///  the message body displayed         ///  </summary>        private static string  showmessage = null;        /// <summary>         ///  Close the window timer         ///  </summary>        private timer timer_close  = new timer ();         [dllimportattribute ("User32.dll" )]        private static extern bool animatewindow (IntPtr hwnd, int  dwtime, int dwflags);   //  The function can animate the form          public const int32 aw_hor_positive = 0x00000001;   / /  Displays the window from left to right. This flag can be used in scrolling animations and slide animations. When the Aw_center flag is used, the flag is ignored          public const int32  AW_HOR_NEGATIVE = 0x00000002;   //  Displays the window from right to left. When the  AW_CENTER  flag is used, the flag is ignored         public const int32  AW_VER_POSITIVE = 0x00000004;   //  Displays the window from top to bottom. This flag can be used in scrolling animations and slide animations. When the Aw_center flag is used, the flag is ignored         public const int32 aw_ ver_negative = 0x00000008;   //  Displays the window from the bottom up. This flag can be used in scrolling animations and slide animations. When the Aw_center flag is used, the flag is ignored         public const int32 aw_center = 0x00000010;          //  If the Aw_hide flag is used, the window will overlap inward, and if the AW_HIDE flag is not used, the window is extended outward          public const Int32 AW_HIDE = 0x00010000;            //  Hide window, default display window          public const Int32 AW_ACTIVATE = 0x00020000;        //  Activate window. Do not use this flag after using the AW_HIDE flag         public const int32 aw_ slide = 0x00040000;          //  use sliding type. The default is the scrolling animation type. This flag is ignored when using the Aw_center flag         public const int32 aw_ blend = 0x00080000;          //  uses the fade effect.This flag can only be used when the HWND is the top-level window          #endregion *****************************          #region  *********************** Fang   Law ***********************        /// <summary>         ///  Construction Method         ///  </summary>        /// <param name= "LoadMode" > Load mode </param>        /// <param name= "message" > Message Body </param>        public static void show ( Loadmode loadmode, string message)         {             FormMode = loadMode;             showmessage = message;             formmessagebox box = new formmessagebox ();             box. Show ();         }        # endregion*************************************************        # region ***********************   Pieces ***********************         /// <summary>        ///  Form Load Events          /// </summary>        /  <param name= "Sender" ></param>        ///  <param name= "E" ></param>       &nBsp;private void formmessagebox_load (object sender, eventargs e)          {             this.lbltitle.text =  "hint";             if   (Formmode == loadmode.error)              {                 this.lbltitle.text =  "Error";                 this.plshow.backgroundimage = global::d ataSource.Properties.Resources.error;     //  change background             }             else if  (formmode ==  loadmode.warning)             {                 this.lblTitle.Text =  "Warning";                 this.plshow.backgroundimage  = global::d atasource.properties.resources.warning;  //  Change Background              }             else            {                 this.plshow.backgroundimage  = global::d atasource.properties.resources.prompt;   //  Change Background              }             this.lblmessage.text = showmessage;            int  width = system.windows.forms.screen.primaryscreen.bounds.width;             int height =  system.windows.forms.screen.primaryscreen.bounds.height;             int top = height - 35 - this. Height;            int left = width  - this. Width - 5;            this. Top = top;            this. Left = left;            this. Topmost = true;            animatewIndow (this. handle, 500, aw_slide + aw_ver_negative);//Start Form animation              this. Showintaskbar = false;            timer_ Close.interval = 4000;            timer_ Close.tick += new eventhandler (Timer_close_tick);             timer_close.start ();        }         /// <summary>         ///  Close the window's Timer response event         /// </summary>         /// <param name= "Sender" ></param>         /// <param name= "E" ></param>&nbSp;       private void timer_close_tick (object sender,  Eventargs e)         {             timer_close.stop ();             this. Close ();         }        ///  <summary>        ///  window is closed          /// </summary>        /// < Param name= "Sender" ></param>        /// <param  name= "E" ></param>        private void  Formmessagebox_formclosed (object sender, formclosedeventargs e)           {            animatewindow (this. Handle, 500, aw_slide + aw_ver_positive + aw_hide);             timer_close.stop ();             timer_close.dispose ();        }         /// <summary>         ///  mouse moves on the message box         /// </summary>         /// <param name= "Sender" ></param>         /// <param name= "E" ></param>         private void plshow_mousemove (Object sender, mouseeventargs e)       &nbSp; {            this. Timer_close.stop ();        }         /// <summary>        ///  move the mouse away from the message box          /// </summary>        /  <param name= "Sender" ></param>        ///  <param name= "E" ></param>        private  Void plshow_mouseleave (object sender, eventargs e)          {            this. Timer_close.start ();         }

C # implements pop-up window in the lower right corner