Question

用VB设计一个命令按钮,点击后让程序转到后台并在任务栏显示小图标该输入什么?

Answer 1

新建一个按钮后输入Private Declare Function Shell_NotifyIcon Lib "shell32.dll" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
Const NIM_ADD = &H0
Const NIM_DELETE = &H2
Const NIF_ICON = &H2
Const NIF_MESSAGE = &H1
Const NIF_TIP = &H4
Const WM_MOUSEMOVE = &H200
Const WM_LBUTTONDBLCLK = &H203
Const WM_RBUTTONDBLCLK = &H206
Const WM_RBUTTONUP = &H205
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
Dim tray As NOTIFYICONDATAPrivate Sub Command1_Click()
App.TaskVisible = False
tray.cbSize = Len(tray)
tray.uId = vbNull
tray.hwnd = Form1.hwnd
tray.uFlags = NIF_TIP Or NIF_MESSAGE Or NIF_ICON
tray.uCallBackMessage = WM_MOUSEMOVE
tray.hIcon = Form1.Icon
Shell_NotifyIcon NIM_ADD, tray
Form1.Hide
End SubPrivate Sub Form_MouseMove(Button As Integer, Shift As Integer, x As Single, Y As Single)
Dim msg As Long
msg = x / 15
If msg = WM_LBUTTONDBLCLK Then
App.TaskVisible = True
Form1.WindowState = 0
Form1.Show
Shell_NotifyIcon NIM_DELETE, tray
End If
End Sub