Private Type NOTIFYICONDATA
cbSize As Long
hWnd As Long
uId As Long
uFlags As Long
ucallbackMessage As Long
hIcon As Long
szTip As String * 64
End Type
Private Declare Function Shell_NotifyIcon Lib "shell32" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, pnid As NOTIFYICONDATA) As Boolean
Private Declare Function SetForegroundWindow Lib "user32" (ByVal hWnd As Long) As Long
Dim TrayIcon As NOTIFYICONDATA
Private Sub Form_Load()
TrayIcon.cbSize = Len(TrayIcon)
TrayIcon.hWnd = hWnd
TrayIcon.uId = vbNull
TrayIcon.uFlags = NIF_ICON Or NIF_TIP Or NIF_MESSAGE
TrayIcon.ucallbackMessage = WM_MOUSEMOVE
TrayIcon.hIcon = Me.Icon
TrayIcon.szTip = "拖盘" & Chr(0)
'在系统栏添加拖盘
Call Shell_NotifyIcon(NIM_ADD, TrayIcon)
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
'构造系统拖盘结构
TrayIcon.cbSize = Len(TrayIcon)
TrayIcon.hWnd = Me.hWnd
TrayIcon.uId = vbNull
'删除系统栏的拖盘
Call Shell_NotifyIcon(NIM_DELETE, TrayIcon)
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
On Error Resume Next
Dim Message As Long
Message = X / Screen.TwipsPerPixelX
'判断鼠标消息,执行不同的功能
Select Case Message
Case WM_LBUTTONDOWN
'点击拖盘
Case WM_RBUTTONUP
SetForegroundWindow Me.hWnd
'按右键弹出菜单
'PopupMenu mnuPopup
End Select
End Sub
在VB6中新建一工程,将FORM1的ScalMode的属性设为3,加入一个image控件和一个对话框控件(要加入对话框控件,须在部件中选取Microsoft Common Dialog Control 6.0),将image1的visible属性改为False,为该Form添加一个菜单,菜单设置如下:
Private Declare Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Type NOTIFYICONDATA
cbSize As Long '该数据结构的大小
hwnd As Long '处理任务栏中图标的窗口句柄
uID As Long '定义的任务栏中图标的标识
uFlags As Long '任务栏图标功能控制,可以是以下值的组合(一般全包括)
'NIF_MESSAGE 表示发送控制消息;
'NIF_ICON表示显示控制栏中的图标;
'NIF_TIP表示任务栏中的图标有动态提示。
uCallbackMessage As Long '任务栏图标通过它与用户程序交换消息,处理该消息的窗口由hWnd决定
hIcon As Long '任务栏中的图标的控制句柄
szTip As String * 64 '图标的提示信息
End Type
Dim myData As NOTIFYICONDATA
Private Sub Form_Load()
If WindowState = vbMinimized Then
LastState = vbNormal
Else
LastState = WindowState
End If
With myData
.cbSize = Len(myData)
.hwnd = Me.hwnd
.uID = 0
.uFlags = NIF_ICON Or NIF_MESSAGE Or NIF_TIP
.uCallbackMessage = WM_MOUSEMOVE
.hIcon = Me.Icon.Handle '默认为窗口图标
.szTip = "提示" & vbNullChar
End With
Shell_NotifyIcon NIM_ADD, myData
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Select Case CLng(X)
Case WM_RBUTTONUP '鼠标在图标上右击时弹出菜单
Me.PopupMenu mnuTray
Case WM_LBUTTONUP '鼠标在图标上左击时窗口若最小化则恢复窗口位置
If Me.WindowState = vbMinimized Then
Me.WindowState = LastState
Me.SetFocus
End If
End Select
End Sub
Private Sub Form_Unload(Cancel As Integer)
Shell_NotifyIcon NIM_DELETE, myData '窗口卸载时,将状态栏中的图标一同卸载
End Sub
Private Sub mnuExit_Click()
Unload Me
End Sub
Private Sub mnuTrayChangeIcon_Click()
On Error GoTo ErrHandler
With cdlOpen
.CancelError = True ' 设置标志
.InitDir = App.Path ' 默认的文件夹为当前文件夹
.Flags = cdlOFNHideReadOnly ' 设置过滤器
.Filter = "图标文件 (*.ico)|*.ico" ' 指定缺省的过滤器为图标文件
.ShowOpen ' 显示选定文件的名字
End With
Image1.Picture = LoadPicture(cdlOpen.FileName)
With myData
.hIcon = Image1.Picture
.uFlags = NIF_ICON
End With
Shell_NotifyIcon NIM_MODIFY, myData
ErrHandler: ' 用户按了"取消"按钮
Exit Sub
End Sub
Private Sub mnuTrayClose_Click()
Unload Me
End Sub
Private Sub Form_Resize()
Select Case WindowState
Case vbMinimized
mnuTrayMaximize.Enabled = True
mnuTrayMinimize.Enabled = False
mnuTrayRestore.Enabled = True
Case vbMaximized
mnuTrayMaximize.Enabled = False
mnuTrayMinimize.Enabled = True
mnuTrayRestore.Enabled = True
Case vbNormal
mnuTrayMaximize.Enabled = True
mnuTrayMinimize.Enabled = True
mnuTrayRestore.Enabled = False
End Select
If WindowState <> vbMinimized Then LastState = WindowState
End Sub
Private Sub mnuTrayMaximize_Click()
WindowState = vbMaximized
End Sub
Private Sub mnuTrayMinimize_Click()
WindowState = vbMinimized
End Sub
Private Sub mnuTrayRestore_Click()
SendMessage hwnd, WM_SYSCOMMAND, SC_RESTORE, 0&
End Sub
Private Declare Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Type NOTIFYICONDATA
cbSize As Long '该数据结构的大小
hwnd As Long '处理任务栏中图标的窗口句柄
uID As Long '定义的任务栏中图标的标识
uFlags As Long '任务栏图标功能控制,可以是以下值的组合(一般全包括)
'NIF_MESSAGE 表示发送控制消息;
'NIF_ICON表示显示控制栏中的图标;
'NIF_TIP表示任务栏中的图标有动态提示。
uCallbackMessage As Long '任务栏图标通过它与用户程序交换消息,处理该消息的窗口由hWnd决定
hIcon As Long '任务栏中的图标的控制句柄
szTip As String * 64 '图标的提示信息
End Type
Dim myData As NOTIFYICONDATA
Private Sub Form_Load()
If WindowState = vbMinimized Then
LastState = vbNormal
Else
LastState = WindowState
End If
With myData
.cbSize = Len(myData)
.hwnd = Me.hwnd
.uID = 0
.uFlags = NIF_ICON Or NIF_MESSAGE Or NIF_TIP
.uCallbackMessage = WM_MOUSEMOVE
.hIcon = Me.Icon.Handle '默认为窗口图标
.szTip = "提示" & vbNullChar
End With
Shell_NotifyIcon NIM_ADD, myData
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Select Case CLng(X)
Case WM_RBUTTONUP '鼠标在图标上右击时弹出菜单
Me.PopupMenu mnuTray
Case WM_LBUTTONUP '鼠标在图标上左击时窗口若最小化则恢复窗口位置
If Me.WindowState = vbMinimized Then
Me.WindowState = LastState
Me.SetFocus
End If
End Select
End Sub
Private Sub Form_Unload(Cancel As Integer)
Shell_NotifyIcon NIM_DELETE, myData '窗口卸载时,将状态栏中的图标一同卸载
End Sub
Private Sub mnuExit_Click()
Unload Me
End Sub
Private Sub mnuTrayChangeIcon_Click()
On Error GoTo ErrHandler
With cdlOpen
.CancelError = True ' 设置标志
.InitDir = App.Path ' 默认的文件夹为当前文件夹
.Flags = cdlOFNHideReadOnly ' 设置过滤器
.Filter = "图标文件 (*.ico)|*.ico" ' 指定缺省的过滤器为图标文件
.ShowOpen ' 显示选定文件的名字
End With
Image1.Picture = LoadPicture(cdlOpen.FileName)
With myData
.hIcon = Image1.Picture
.uFlags = NIF_ICON
End With
Shell_NotifyIcon NIM_MODIFY, myData
ErrHandler: ' 用户按了"取消"按钮
Exit Sub
End Sub
Private Sub mnuTrayClose_Click()
Unload Me
End Sub
Private Sub Form_Resize()
Select Case WindowState
Case vbMinimized
mnuTrayMaximize.Enabled = True
mnuTrayMinimize.Enabled = False
mnuTrayRestore.Enabled = True
Case vbMaximized
mnuTrayMaximize.Enabled = False
mnuTrayMinimize.Enabled = True
mnuTrayRestore.Enabled = True
Case vbNormal
mnuTrayMaximize.Enabled = True
mnuTrayMinimize.Enabled = True
mnuTrayRestore.Enabled = False
End Select
If WindowState <> vbMinimized Then LastState = WindowState
End Sub
Private Sub mnuTrayMaximize_Click()
WindowState = vbMaximized
End Sub
Private Sub mnuTrayMinimize_Click()
WindowState = vbMinimized
End Sub
Private Sub mnuTrayRestore_Click()
SendMessage hwnd, WM_SYSCOMMAND, SC_RESTORE, 0&
End Sub