任意のフォームのシステム メニューに「About...」ボタンを追加できるクラスを作成できました。load
この部分は、フォームのイベントによって追加されたボタンで正常に動作しますが、そのボタンのクリックをどのように処理すればよいでしょうか? ありがとう。
ボタンを追加する方法は次のとおりです-
Private Sub mainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
{More code....}
Dim SysMenu = New SystemMenu(Me)
{More code....}
End Sub
そして、ここにSystemMenu
クラスがあります -
Imports System.Windows.Forms
Public Class SystemMenu
Private Declare Function GetSystemMenu Lib "user32" (ByVal hWnd As IntPtr, ByVal bRevert As Boolean) As IntPtr
Private Declare Function AppendMenu Lib "user32" Alias "AppendMenuA" (ByVal hMenu As IntPtr, ByVal uFlags As Int32, ByVal uIDNewItem As IntPtr, ByVal lpNewItem As String) As Boolean
Private Const MF_STRING As Integer = &H0
Private Const MF_SEPARATOR As Integer = &H800
Private m_hSysMenu As IntPtr
Private Property hSysMenu() As IntPtr
Get
Return Me.m_hSysMenu
End Get
Set(ByVal Value As IntPtr)
Me.m_hSysMenu = Value
End Set
End Property
'**
' Constructor
'*
Protected Friend Sub New(ByRef Form As Form)
Me.hSysMenu = GetSystemMenu(Form.Handle, False)
AddAbout(Form)
End Sub
'**
' Add an 'About' button to the system menu of the given form
'*
Private Sub AddAbout(ByRef Form As Form)
AppendMenu(Me.hSysMenu, MF_SEPARATOR, 1000, Nothing)
AppendMenu(Me.hSysMenu, MF_STRING, 1001, "About...")
End Sub
End Class