VB.NET NotifyIcon.ContextMenu屬性代碼示例

' 導入命名空間
Imports System.Drawing
Imports System.Windows.Forms

Public NotInheritable Class Form1
    Inherits System.Windows.Forms.Form

    Private contextMenu1 As System.Windows.Forms.ContextMenu
    Friend WithEvents menuItem1 As System.Windows.Forms.MenuItem
    Friend WithEvents notifyIcon1 As System.Windows.Forms.NotifyIcon
    Private components As System.ComponentModel.IContainer

    <System.STAThread()> _
    Public Shared Sub Main()
        System.Windows.Forms.Application.Run(New Form1)
    End Sub

    Public Sub New()

        Me.components = New System.ComponentModel.Container
        Me.contextMenu1 = New System.Windows.Forms.ContextMenu
        Me.menuItem1 = New System.Windows.Forms.MenuItem

        ' Initialize contextMenu1
        Me.contextMenu1.MenuItems.AddRange(New System.Windows.Forms.MenuItem() _
                            {Me.menuItem1})

        ' Initialize menuItem1
        Me.menuItem1.Index = 0
        Me.menuItem1.Text = "E&xit"

        ' Set up how the form should be displayed.
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Text = "Notify Icon Example"

        ' Create the NotifyIcon.
        Me.notifyIcon1 = New System.Windows.Forms.NotifyIcon(Me.components)

        ' The Icon property sets the icon that will appear
        ' in the systray for this application.
        notifyIcon1.Icon = New Icon("appicon.ico")

        ' The ContextMenu property sets the menu that will
        ' appear when the systray icon is right clicked.
        notifyIcon1.ContextMenu = Me.contextMenu1

        ' The Text property sets the text that will be displayed,
        ' in a tooltip, when the mouse hovers over the systray icon.
        notifyIcon1.Text = "Form1 (NotifyIcon example)"
        notifyIcon1.Visible = True
    End Sub
    
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        ' Clean up any components being used.
        If disposing Then
            If (components IsNot Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    Private Sub notifyIcon1_DoubleClick(Sender as object, e as EventArgs) handles notifyIcon1.DoubleClick
        ' Show the form when the user double clicks on the notify icon.

        ' Set the WindowState to normal if the form is minimized.
        if (me.WindowState = FormWindowState.Minimized) then _
            me.WindowState = FormWindowState.Normal

        ' Activate the form.
        me.Activate()
    end sub

    Private Sub menuItem1_Click(Sender as object, e as EventArgs) handles menuItem1.Click
        ' Close the form, which closes the application.
        me.Close()
    end sub

End Class

' 導入命名空間
Imports System
Imports System.Drawing
Imports System.Data
Imports System.IO
Imports System.Collections
Imports System.Windows.Forms
Imports System.Drawing.Printing

Public Class MainClass
    Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1)
    End Sub
End Class


Public Class Form1
    Inherits System.Windows.Forms.Form

    Private _loadCalled As Boolean = False

#Region " Windows Form Designer generated code "

        Public Sub New()
            MyBase.New()

            'This call is required by the Windows Form Designer.
            InitializeComponent()

            'Add any initialization after the InitializeComponent() call

        End Sub

        'Form overrides dispose to clean up the component list.
        Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
            If disposing Then
                If Not (components Is Nothing) Then
                    components.Dispose()
                End If
            End If
            MyBase.Dispose(disposing)
        End Sub

        'Required by the Windows Form Designer
        Private components As System.ComponentModel.IContainer

        'NOTE: The following procedure is required by the Windows Form Designer
        'It can be modified using the Windows Form Designer.  
        'Do not modify it using the code editor.
        Friend WithEvents icnNotify As System.Windows.Forms.NotifyIcon
        <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
        Me.icnNotify = New System.Windows.Forms.NotifyIcon(Me.components)
        '
        'icnNotify
        '
        Me.icnNotify.Icon = New System.Drawing.Icon("test.ico")
        Me.icnNotify.Text = "Right-click me to view Favorites?"
        Me.icnNotify.Visible = True
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Name = "Form1"
        Me.ShowInTaskbar = False
        Me.Text = "Form1"
        Me.WindowState = System.Windows.Forms.FormWindowState.Minimized

    End Sub

#End Region


    Protected Overrides Sub OnVisibleChanged(ByVal e As System.EventArgs)
        If _loadCalled = False Then
            Return
        End If
        ' if the user can see us, hide us...
        If Me.Visible = True Then Me.Visible = False
    End Sub

    Protected Overrides Sub OnLoad(ByVal e As System.EventArgs)
        Dim menu As New ContextMenu()
        menu.MenuItems.Add(New ActionMenuItem())

        menu.MenuItems.Add("-")

        menu.MenuItems.Add(New ExitMenuItem())

        icnNotify.ContextMenu = menu

        _loadCalled = True
        Me.Hide()
    End Sub

End Class

Public Class ActionMenuItem
    Inherits MenuItem

    ' Constructor...
    Public Sub New()
        Text = "Some Action..."
    End Sub

    ' OnClick...
    Protected Overrides Sub OnClick(ByVal e As System.EventArgs)
        MessageBox.Show("Action")
    End Sub

End Class

Public Class ExitMenuItem
    Inherits MenuItem

    ' Constructor...
    Public Sub New()
        Text = "Exit"
    End Sub

    ' OnClick...
    Protected Overrides Sub OnClick(ByVal e As System.EventArgs)
        Application.Exit()
    End Sub

End Class