VB6如何在拖托盘中写入应用程序图标

1、新建立一个vb6工程，将Form1的ShowInTaskBar属性设置为False
2、菜单：工程--添加模块   按“打开”这样就添加了一个新模块，名为Module1,保存为Module1.bas
3、在Module1中写下如下代码：

Option Explicit

Public Const MAX_TOOLTIP As Integer = 64
Public Const NIF_ICON = &H2
Public Const NIF_MESSAGE = &H1
Public Const NIF_TIP = &H4
Public Const NIM_ADD = &H0
Public Const NIM_DELETE = &H2
Public Const WM_MOUSEMOVE = &H200
Public Const WM_LBUTTONDOWN = &H201
Public Const WM_LBUTTONUP = &H202
Public Const WM_LBUTTONDBLCLK = &H203
Public Const WM_RBUTTONDOWN = &H204
Public Const WM_RBUTTONUP = &H205
Public Const WM_RBUTTONDBLCLK = &H206

Public Const SW_RESTORE = 9
Public Const SW_HIDE = 0

Public nfIconData As NOTIFYICONDATA


Public Type NOTIFYICONDATA
    cbSize           As Long
    hWnd             As Long
    uID              As Long
    uFlags           As Long
    uCallbackMessage As Long
    hIcon            As Long
    szTip            As String * MAX_TOOLTIP
End Type

Public Declare Function ShowWindow Lib "user32" (ByVal hWnd As Long, ByVal nCmdShow As Long) As Long
Public Declare Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
4、在Form1的Load事件中写下如下代码：

Private Sub Form_Load()

''以下把程序放入System Tray====================================System Tray Begin
With nfIconData
    .hWnd = Me.hWnd
    .uID = Me.Icon
    .uFlags = NIF_ICON Or NIF_MESSAGE Or NIF_TIP
    .uCallbackMessage = WM_MOUSEMOVE
    .hIcon = Me.Icon.Handle
    ''定义鼠标移动到托盘上时显示的Tip
    .szTip = App.Title + "(版本 " & App.Major & "." & App.Minor & "." & App.Revision & ")" & vbNullChar
    .cbSize = Len(nfIconData)
End With
Call Shell_NotifyIcon(NIM_ADD, nfIconData)
''=============================================================System Tray End
Me.Hide
End Sub
5、在Form1的QueryUnload事件中写入如下代码：

Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
  Call Shell_NotifyIcon(NIM_DELETE, nfIconData)
End Sub
6、在Form1的MouseMove事件中写下如下代码：
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim lMsg As Single
lMsg = X / Screen.Twip