1     public class InnerClass: Form
 2     {
 3         private Shell_NotifyIconEx servicesClass = null; // 接受主CLASS 的例項控制代碼
 4         internal InnerClass(Shell_NotifyIconEx _servicesClass)
 5         {
 6             servicesClass = _servicesClass;
 7         }
 8 
 9         private const int WM_LBUTTONDOWN = 0x0201
 
; // 左鍵
10         private const int WM_RBUTTONDOWN = 0x204; // 右鍵
11         private const int WM_MBUTTONDOWN = 0x207; // 中鍵
12 
13         [DllImport("user32.dll", EntryPoint = "TrackPopupMenu")]
14         private static extern int TrackPopupMenu( // c# 和vb.net 好象沒有了隨地popup 了，只要請它老人家出馬了
15          IntPtr hMenu,
 
16          int wFlags,
17          int x,
18          int y,
19          int nReserved,
20          IntPtr hwnd,
21          ref RECT lprc
22          );
23 
24         [StructLayout(LayoutKind.Sequential)]
25         private struct RECT
26         { // 上面那位用的結構，表示前彈出選單可用的一個範圍大小（一般是全螢幕都讓它用，留著搞遊戲或視訊對話之類的朋友指定選單可用的範圍）
 

27             internal int Left;
28             internal int Top;
29             internal int Right;
30             internal int Bottom;
31         }
32 
33         protected override void WndProc(ref Message msg)
34         {
35             if (msg.Msg == servicesClass.WM_NOTIFY_TRAY)
36             { // 如果訊息相符
37                 if ((int)msg.WParam == servicesClass.uID)
38                 { // 並且訊息的WParam 相符
39                    MouseButtons mb =MouseButtons.None;
40                     if ((int)msg.LParam == WM_LBUTTONDOWN)
41                     { //如果點選的是左鍵
42                         mb =MouseButtons.Left;
43                     }
44                     else if ((int)msg.LParam == WM_MBUTTONDOWN)
45                     { //中鍵
46                         mb =MouseButtons.Middle;
47                     }
48                     else if ((int)msg.LParam == WM_RBUTTONDOWN)
49                     { //右鍵
50                         if (servicesClass.contextMenuHwnd != IntPtr.Zero)
51                         { //如果有定義過選單關聯
52                             RECT r = new RECT();
53                             r.Left = Screen.PrimaryScreen.WorkingArea.Left;
54                             r.Right =Screen.PrimaryScreen.WorkingArea.Right;
55                             r.Top =Screen.PrimaryScreen.WorkingArea.Top;
56                             r.Bottom =Screen.PrimaryScreen.WorkingArea.Right;
57 
58                             TrackPopupMenu(
59                              servicesClass.contextMenuHwnd,
60                              2,
61                             Cursor.Position.X,
62                             Cursor.Position.Y,
63                              0,
64                              servicesClass.formHwnd,
65                              ref r
66                              );
67                         }
68                         else
69                         { //如果沒有定義過選單關聯
70                             mb =MouseButtons.Right;
71                         }
72                     }
73 
74                     if (mb !=MouseButtons.None && servicesClass._delegateOfCallBack != null)
75                     {
76                         servicesClass._delegateOfCallBack(mb); // 執行回撥
77                         return;
78                     }
79                 }
80             }
81 
82             base.WndProc(ref msg);
83         }
84     }

  1 public class Shell_NotifyIconEx
  2     {
  3         /// <summary>
  4         /// ArLi, last fix: 2003.9.12, reference: ArLi.CommonPrj Lib @ http://zpcity.com/arli/
  5         /// </summary>
  6         public static readonly System.Version myVersion = new System.Version(1, 2); //版本宣告
  7 
  8         private readonly InnerClass formTmp = null; // 這個很重要，不能放在構造裡，因為它必須和此例項同等生存期才不會被中止訊息迴圈
  9         private readonly IntPtr formTmpHwnd = IntPtr.Zero; // 這是上一行的控制代碼
 10         private readonly bool VersionOk = false; // 這是一個由VersionPass 返回的屬性，它允許開發者檢測當前機子的Shell32.dll(可能在win95 或未知平臺上版本) 合適此組，不符則用.net 自己的notifyicon
 11         private bool forgetDelNotifyBox = false; // 這是一個私有標誌，它允許開發者在程式退出時忘記呼叫DelNotifyBox 來清除圖示時會自動在析構裡清掉它。
 12 
 13         internal IntPtr formHwnd = IntPtr.Zero; // 這是呼叫此元件的主視窗控制代碼（當前例項有效，可多個icon 不衝突）
 14         internal IntPtr contextMenuHwnd = IntPtr.Zero; // 這是選單的控制代碼（當前例項有效，可多個icon 不衝突）
 15 
 16         internal delegate void delegateOfCallBack(System.Windows.Forms.MouseButtons mb);
 17         internal delegateOfCallBack _delegateOfCallBack = null;
 18 
 19         public Shell_NotifyIconEx() // 構造
 20         {
 21             WM_NOTIFY_TRAY += 1; // 訊息ID +1，避免多個ICON 訊息處理衝突
 22             uID += 1; // 同上
 23             formTmp = new InnerClass(this); // 新例項一個訊息迴圈
 24             formTmpHwnd = formTmp.Handle; // 新例項控制代碼
 25             VersionOk = this.GetShell32VersionInfo() >= 5; // 版本是否合適，此元件由於重點在氣泡提示，它要求Shell32.dll 5.0(ie 5.0) 以上
 26         }
 27 
 28         ~Shell_NotifyIconEx()
 29         { // 析構
 30             if (forgetDelNotifyBox) this.DelNotifyBox(); //如果開發者忘記則清理icon
 31         }
 32 
 33         #region API_Consts
 34         internal readonly int WM_NOTIFY_TRAY = 0x0400 + 2001; //readonly 表示只在構造可付值
 35         internal readonly int uID = 5000;
 36 
 37         // 常數定義，有VC 的可以參見 shellapi.h
 38         private const int NIIF_NONE = 0x00;
 39         private const int NIIF_INFO = 0x01;
 40         private const int NIIF_WARNING = 0x02;
 41         private const int NIIF_ERROR = 0x03;
 42 
 43         private const int NIF_MESSAGE = 0x01;
 44         private const int NIF_ICON = 0x02;
 45         private const int NIF_TIP = 0x04;
 46         private const int NIF_STATE = 0x08;
 47         private const int NIF_INFO = 0x10;
 48 
 49         private const int NIM_ADD = 0x00;
 50         private const int NIM_MODIFY = 0x01;
 51         private const int NIM_DELETE = 0x02;
 52         private const int NIM_SETFOCUS = 0x03;
 53         private const int NIM_SETVERSION = 0x04;
 54 
 55         private const int NIS_HIDDEN = 0x01;
 56         private const int NIS_SHAREDICON = 0x02;
 57 
 58         private const int NOTIFYICON_OLDVERSION = 0x00;
 59         private const int NOTIFYICON_VERSION = 0x03;
 60 
 61         [DllImport("shell32.dll", EntryPoint = "Shell_NotifyIcon")]
 62         private static extern bool Shell_NotifyIcon( // 這位是主角
 63             int dwMessage,
 64             ref NOTIFYICONDATA lpData
 65         );
 66 
 67         /// <summary>
 68         /// 此API 的作用是當 this.focus() 無效時可以考慮使用，效果很好
 69         /// </summary>
 70         /// <param name="hwnd">this.Handle, 當前窗體控制代碼</param>
 71         [DllImport("user32.dll", EntryPoint = "SetForegroundWindow")]
 72         public static extern int SetForegroundWindow(
 73             IntPtr hwnd
 74         );
 75 
 76         [StructLayout(LayoutKind.Sequential)]
 77         private struct NOTIFYICONDATA
 78         { // 主角用的結構
 79             internal int cbSize;
 80             internal IntPtr hwnd;
 81             internal int uID;
 82             internal int uFlags;
 83             internal int uCallbackMessage;
 84             internal IntPtr hIcon;
 85             [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x80)]
 86             internal string szTip;
 87             internal int dwState; // 這裡往下幾個是 5.0 的精華
 88             internal int dwStateMask;
 89             [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0xFF)]
 90             internal string szInfo;
 91             internal int uTimeoutAndVersion;
 92             [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x40)]
 93             internal string szInfoTitle;
 94             internal int dwInfoFlags;
 95         }
 96         #endregion
 97 
 98         /// <summary>
 99         /// 建一個結構
100         /// </summary>
101         private NOTIFYICONDATA GetNOTIFYICONDATA(IntPtr iconHwnd, string sTip, string boxTitle, string boxText)
102         {
103             NOTIFYICONDATA nData = new NOTIFYICONDATA();
104 
105             nData.cbSize = System.Runtime.InteropServices.Marshal.SizeOf(nData); // 結構的大小
106             nData.hwnd = formTmpHwnd; // 處理訊息迴圈的窗體控制代碼，可以移成主窗體
107             nData.uID = uID; // 訊息的 WParam，回撥時用
108             nData.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP | NIF_INFO; // 標誌，表示由訊息、圖示、提示、資訊組成
109             nData.uCallbackMessage = WM_NOTIFY_TRAY; // 訊息ID，回撥用
110             nData.hIcon = iconHwnd; // 圖示的控制代碼，有興趣的話可以定時改變它變成動畫ICON
111             nData.uTimeoutAndVersion = 10 * 1000 | NOTIFYICON_VERSION; // 提示的超時值（幾秒後自動消失）和版本
112             nData.dwInfoFlags = NIIF_INFO; // 型別標誌，有INFO、WARNING、ERROR，更改此值將影響氣泡提示框的圖示型別
113 
114             nData.szTip = sTip; // 圖示的提示資訊
115             nData.szInfoTitle = boxTitle; // 氣泡提示框的標題
116             nData.szInfo = boxText; // 氣泡提示框的提示內容
117 
118             return nData; // 這個嘛。。。
119         }
120 
121         private int GetShell32VersionInfo()
122         { // 返回shell32 的版本
123             FileInfo fi = new FileInfo(Path.Combine(System.Environment.SystemDirectory, "shell32.dll")); //將來的平臺shell32 放哪目前不得而知，碰到再改
124             if (fi.Exists)
125             {
126                 FileVersionInfo theVersion = FileVersionInfo.GetVersionInfo(fi.FullName);
127                 int i = theVersion.FileVersion.IndexOf('.');
128                 if (i > 0)
129                 {
130                     try
131                     {
132                         return int.Parse(theVersion.FileVersion.Substring(0, i));
133                     }
134                     catch { }
135                 }
136             }
137             return 0;
138         }
139 
140         /// <summary>
141         /// 加一個新圖示
142         /// </summary>
143         /// <param name="iconHwnd">圖示控制代碼</param>
144         /// <param name="sTip">提示, 5.0 最大: 128 char</param>
145         /// <param name="boxTitle">氣泡標題, 最大: 64 char</param>
146         /// <param name="boxText">氣泡內容, 最大: 256 char</param>
147         /// <returns>成功、失敗或錯誤(-1)</returns>
148         public int AddNotifyBox(IntPtr iconHwnd, string sTip, string boxTitle, string boxText)
149         {
150             if (!this.VersionOk) return -1;
151 
152             NOTIFYICONDATA nData = GetNOTIFYICONDATA(iconHwnd, sTip, boxTitle, boxText);
153             if (Shell_NotifyIcon(NIM_ADD, ref nData))
154             {
155                 this.forgetDelNotifyBox = true;
156                 return 1;
157             }
158             else
159             {
160                 return 0;
161             }
162         }
163 
164         /// <summary>
165         /// 和add 差不多，不重複了
166         /// </summary>
167         public int DelNotifyBox()
168         {
169             if (!this.VersionOk) return -1;
170 
171             NOTIFYICONDATA nData = GetNOTIFYICONDATA(IntPtr.Zero, null, null, null);
172             if (Shell_NotifyIcon(NIM_DELETE, ref nData))
173             {
174                 this.forgetDelNotifyBox = false;
175                 return 1;
176             }
177             else
178             {
179                 return 0;
180             }
181         }
182 
183         public int ModiNotifyBox(IntPtr iconHwnd, string sTip, string boxTitle, string boxText)
184         {
185             if (!this.VersionOk) return -1;
186 
187             NOTIFYICONDATA nData = GetNOTIFYICONDATA(iconHwnd, sTip, boxTitle, boxText);
188             return Shell_NotifyIcon(NIM_MODIFY, ref nData) ? 1 : 0;
189         }
190 
191         #region Optional Module //這裡是可選方法
192         /// <summary>
193         /// 連線一個已存在的 contextMenu
194         /// </summary>
195         /// <param name="_formHwnd">窗體控制代碼，用來處理選單的訊息</param>
196         /// <param name="_contextMenuHwnd">選單的控制代碼</param>
197         public void ConnectMyMenu(IntPtr _formHwnd, IntPtr _contextMenuHwnd)
198         {
199             formHwnd = _formHwnd;
200             contextMenuHwnd = _contextMenuHwnd;
201         }
202 
203         /// <summary>
204         /// 立即清理掉圖示、委託和formtmp 資源（好象沒什麼資源，考慮到可能二次開發掛接就開了這個東東）
205         /// </summary>
206         public void Dispose()
207         {
208             _delegateOfCallBack = null;
209             this.formTmp.Dispose();
210         }
211 
212         /// <summary>
213         /// 版本適合
214         /// </summary>
215         public bool VersionPass
216         {
217             get
218             {
219                 return this.VersionOk;
220             }
221         }
222         #endregion
223     }

用法示例:

1 private void button2_Click (object sender, System.EventArgs e) {
2     Shell_NotifyIconEx ().AddNotifyBox (this.Icon.Handle, this.Text, "這是標題", "單擊這裡開始，我將帶你暢遊API 世界");
3 }

private void GetPoc1 (MouseButtons mb) { // 回撥處理
    if (mb == MouseButtons.Left) {
        MessageBox.Show ("來自選單1");
    }
}
privateShell_NotifyIconEx o1 = newShell_NotifyIconEx (); //這個放外面是用在 o.DelNotifyBox
private void button1_Click (object sender, System.EventArgs e) {
    o1.AddNotifyBox (this.Icon.Handle, this.Text, "選單1", "單擊這裡開始，我將帶你暢遊API 世界");
    o1.ConnectMyMenu (this.Handle, this.contextMenu1.Handle); // 掛上選單，可選
    o1._delegateOfCallBack = newShell_NotifyIconEx.delegateOfCallBack (GetPoc1); //定義回撥
}

private void GetPoc1(MouseButtons mb) { // 回撥處理
   if (mb == MouseButtons.Left) {
    MessageBox.Show("來自選單1");
   }
  }
  private Shell_NotifyIconEx o1 = new Shell_NotifyIconEx(); //這個放外面是用在 o.DelNotifyBox
  private void button1_Click(object sender, System.EventArgs e) {
   o1.AddNotifyBox(this.Icon.Handle,this.Text,"選單1","單擊這裡開始，我將帶你暢遊API 世界");   
   o1.ConnectMyMenu(this.Handle,this.contextMenu1.Handle); // 掛上選單，可選
   o1._delegateOfCallBack = new Shell_NotifyIconEx.delegateOfCallBack(GetPoc1); //定義回撥
  }
  private void GetPoc2(MouseButtons mb) {
   if (mb == MouseButtons.Left) {
    MessageBox.Show("來自選單2");
   }
  }
  private Shell_NotifyIconEx o2 = new Shell_NotifyIconEx(); //第二個nofityicon 和上面一樣
  private void button2_Click(object sender, System.EventArgs e) {
   o2.AddNotifyBox(this.Icon.Handle,this.Text,"選單2","單擊這裡開始，我將帶你暢遊API 世界");   
   o2.ConnectMyMenu(this.Handle,this.contextMenu2.Handle);
   o2._delegateOfCallBack = new Shell_NotifyIconEx.delegateOfCallBack(GetPoc2);
  }

本文來自：http://blog.sina.com.cn/s/blog_6c0affba0100pi0e.html