C# 如何實現帶消息數的App圖標，

C# 如何實現帶消息數的App圖標，

　　上次寫了一篇博文,但是每次更新圖標時,桌面會閃爍(刷新),有博友說人家的圖標都不會刷新,還能動畫.我想了一下,如果要達到這個效果,可以用Form來實現,就是在Form中嵌入一個圖片,然後用一個label來動態顯示消息數,關鍵是將Form的邊框隱藏,背景設為透明即可.如果要有旋轉或者縮放動畫,都可以用C#來實現.

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 
10 namespace AOPDemo
11 {
12     public partial class AppIconMsg : Form
13     {
14         public AppIconMsg()
15         {
16             InitializeComponent();
17             //設置背景為透明
18             this.BackColor = Color.FromArgb(116, 164, 2);
19             this.TransparencyKey = this.BackColor;  
20             
21         }
22 
23         private void AppIconMsg_Load(object sender, EventArgs e)
24         {
25             this.Width = 64;
26             this.Height = 64;
27             this.label1.Text = "99";
28             this.timer1.Enabled = true;
29             
30         }
31 
32         // Drag it around the screen
33         private const int WM_NCHITTEST = 0x84;
34         private const int HTCAPTION = 0x2;
35         protected override void WndProc(ref Message m)
36         {
37             //Disable mouseDoubleClick on form
38             if (m.Msg == WM_LBUTTONDBLCLK)
39             {
40                 Form2 frm = new Form2(msg);
41                 frm.Show();
42                 //this.Close();
43                 return;
44             }
45 
46             if (m.Msg == WM_NCLBUTTONDBLCLK)
47             {
48                 Form2 frm = new Form2(msg);
49                 frm.Show();
50                // this.Close();
51                 return;
52             }
53 
54             //drag
55             if (m.Msg == WM_NCHITTEST)
56                 m.Result = new IntPtr(HTCAPTION);
57             else
58                 base.WndProc(ref m);
59         }
60         private int msg = 0;
61         private void timer1_Tick(object sender, EventArgs e)
62         {
63             int num = new Random().Next(1, 100);
64             msg = num;
65             this.label1.Text = num.ToString();
66         }
67 
68         const int WM_LBUTTONDBLCLK = 0x0203;//client area
69         const int WM_NCLBUTTONDBLCLK = 0x00A3;//non-client area
70         private void toolStripExit_Click(object sender, EventArgs e)
71         {
72             this.Close();
73         }
74 
75     }
76 }