C# 如何实现带消息数的App图标

　　上次写了一篇博文,但是每次更新图标时,桌面会闪烁(刷新),有博友说人家的图标都不会刷新,还能动画.我想了一下,如果要达到这个效果,可以用Form来实现,就是在Form中嵌入一个图片,然后用一个label来动态显示消息数,关键是将Form的边框隐藏,背景设为透明即可.如果要有旋转或者缩放动画,都可以用C#来实现.

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

namespace AOPDemo
{
    public partial class AppIconMsg : Form
    {
        public AppIconMsg()
        {
            InitializeComponent();
            //设置背景为透明
            this.BackColor = Color.FromArgb(116, 164, 2);
            this.TransparencyKey = this.BackColor;  
            
        }

        private void AppIconMsg_Load(object sender, EventArgs e)
        {
            this.Width = 64;
            this.Height = 64;
            this.label1.Text = "99";
            this.timer1.Enabled = true;
            
        }

        // Drag it around the screen
        private const int WM_NCHITTEST = 0x84;
        private const int HTCAPTION = 0x2;
        protected override void WndProc(ref Message m)
        {
            //Disable mouseDoubleClick on form
            if (m.Msg == WM_LBUTTONDBLCLK)
            {
                Form2 frm = new Form2(msg);
                frm.Show();
                //this.Close();
                return;
            }

            if (m.Msg == WM_NCLBUTTONDBLCLK)
            {
                Form2 frm = new Form2(msg);
                frm.Show();
               // this.Close();
                return;
            }

            //drag
            if (m.Msg == WM_NCHITTEST)
                m.Result = new IntPtr(HTCAPTION);
            else
                base.WndProc(ref m);
        }
        private int msg = 0;
        private void timer1_Tick(object sender, EventArgs e)
        {
            int num = new Random().Next(1, 100);
            msg = num;
            this.label1.Text = num.ToString();
        }

        const int WM_LBUTTONDBLCLK = 0x0203;//client area
        const int WM_NCLBUTTONDBLCLK = 0x00A3;//non-client area
        private void toolStripExit_Click(object sender, EventArgs e)
        {
            this.Close();
        }

    }
}