/// <summary>
        /// 窗體閃爍
        /// </summary>
        /// <param name="handle">將要閃爍的窗體</param>
        /// <param name="blnvert">是否恢復(fù)狀態(tài)</param>
        /// <returns></returns>
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        static extern bool FlashWindow(IntPtr handle, bool blnvert);

 public partial class Form1 : Form
    {
        Bitmap bit;
        public Form1()
        {
            InitializeComponent();
 
        }
        protected override void OnPaint(PaintEventArgs e)
        {
            //e.Graphics.DrawEllipse(new Pen(Color.Red,2), new RectangleF(0, 0, this.Width-2, this.Height-2));
 
            e.Graphics.DrawImage(bit, new Point(0, 0));
            e.Graphics.DrawString("Good", new Font("華文行楷", 15), Brushes.Red, new PointF(10, 10));
 
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            bit = new Bitmap("../../1.png");
            bit.MakeTransparent(Color.Blue);
            this.TransparencyKey = Control.DefaultBackColor;//必須對(duì)該屬性進(jìn)行設(shè)置否則背景不透明
        }
    }

 /// <summary>
    /// 窗口顯示關(guān)閉動(dòng)畫(huà)
    /// </summary>
    class PopUpWindowAnimation
    {
        /// <summary>
        /// 窗口打開(kāi)關(guān)閉動(dòng)畫(huà)
        /// </summary>
        /// <param name="hander">窗口句柄</param>
        /// <param name="duration">持續(xù)時(shí)間</param>
        /// <param name="effert">效果</param>
        /// <returns></returns>
        public static bool PopWindow(IntPtr handle,int duration,  Effect effert)
        {
            bool result = AnimateWindow(handle, duration, (int)effert);
            return result;
        }
      
        /// <summary>
        /// 實(shí)現(xiàn)窗口的動(dòng)畫(huà)效果
        /// </summary>
        /// <param name="hwnd">窗口句柄</param>
        /// <param name="dwTime">動(dòng)畫(huà)持續(xù)的時(shí)間</param>
        /// <param name="dwFlags">動(dòng)畫(huà)類(lèi)型選項(xiàng)</param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);
    }
    /// <summary>
    /// 動(dòng)畫(huà)效果
    /// </summary>
    [Flags]
  public  enum Effect
    {
        /// <summary>
        /// 滑動(dòng)效果。默認(rèn)為滾動(dòng)動(dòng)畫(huà)類(lèi)型，當(dāng)使用AW_CENTER標(biāo)志時(shí)，這個(gè)標(biāo)志被忽略
        /// </summary>
        AW_SLIDE = 0X40000,
        /// <summary>
        /// 激活窗口。在使用AW_HIDE標(biāo)志后不要使用這個(gè)標(biāo)志
        /// </summary>
        AW_ACTIVATE = 0X20000,
        /// <summary>
        /// 使用淡入效果。只有當(dāng)hWnd為頂層窗口時(shí)才可以使用此標(biāo)志
        /// </summary>
        AW_BLEND = 0X80000,
        /// <summary>
        /// 隱藏窗口，默認(rèn)則顯示窗口
        /// </summary>
        AW_HIDE = 0X10000,
        /// <summary>
        ///若使用AW_HIDE標(biāo)志，則使窗口向內(nèi)重疊；若使用AW_HIDE標(biāo)志，則使窗口向外擴(kuò)展。
        /// </summary>
        AW_CENTER = 0X10,
        /// <summary>
        /// 自左向右顯示窗口。該標(biāo)志可以在滾動(dòng)動(dòng)畫(huà)和滑動(dòng)動(dòng)畫(huà)中使用。當(dāng)使用AW_CENTER標(biāo)志時(shí)，該標(biāo)志
        /// 被忽略
        /// </summary>
        AW_HOR_POSITIVE = 0X1,
        /// <summary>
        /// 自右向左顯示窗口。該標(biāo)志可以在滾動(dòng)動(dòng)畫(huà)和滑動(dòng)動(dòng)畫(huà)中使用。當(dāng)使用AW_CENTER標(biāo)志時(shí)，該標(biāo)志
        /// 被忽略
        /// </summary>
        AW_HOR_NEGATIVE = 0X2,
        /// <summary>
        ///  自上向下顯示窗口。該標(biāo)志可以在滾動(dòng)動(dòng)畫(huà)和滑動(dòng)動(dòng)畫(huà)中使用。當(dāng)使用AW_CENTER標(biāo)志時(shí)，該標(biāo)志
        /// 被忽略
        /// </summary>
        AW_VER_POSITIVE = 0X4,
        /// <summary>
        /// 自下向上顯示窗口。該標(biāo)志可以在滾動(dòng)動(dòng)畫(huà)和滑動(dòng)動(dòng)畫(huà)中使用。當(dāng)使用AW_CENTER標(biāo)志時(shí)，該標(biāo)志
        /// 被忽略
        /// </summary>
        AW_VER_NEGATIVE = 0X8
    }