excel - 禁用 VBA 用户窗体 'x' ，但仍允许卸载我

Question

我有一个用户表单，在关闭时需要运行清理步骤。我想要 X按钮被禁用和/或不可见，但我仍然需要能够卸载表单。我使用了如下代码，但它也阻止了 Unload Me .

'Disables closing via x button
Sub UserForm_QueryClose(Cancel As Integer, ClsoeMode As Integer)
    If CloseMode = vbFormControlMenu Then
        MsgBox ("BLOCKED")
        Cancel = True
    End If
End Sub

Answer 1

不要使用 UserForm_QueryClose在这种情况下。使用 API RemoveMenu , GetSystemMenu和 FindWindow
This是我最喜欢的 API 网站

删除菜单 : http://allapi.mentalis.org/apilist/RemoveMenu.shtml

获取系统菜单 : http://allapi.mentalis.org/apilist/GetSystemMenu.shtml

查找窗口 : http://allapi.mentalis.org/apilist/FindWindow.shtml

看这个例子

Option Explicit

Private Declare Function RemoveMenu Lib "user32" (ByVal hMenu As Long, ByVal nPosition As Long, _
ByVal wFlags As Long) As Long

Private Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal bRevert As Long) As Long

Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long

Private Const MF_BYPOSITION = &H400&

Private Sub UserForm_Initialize()
    Dim Ret As Long

    '~~> Change UserForm1 to match your userform's caption
    Ret = FindWindow("ThunderDFrame", "UserForm1")

    Do While Ret = 0
        '~~> Change UserForm1 to match your userform's caption
        Ret = FindWindow("ThunderDFrame", "UserForm1")
        DoEvents
    Loop

    RemoveMenu GetSystemMenu(Ret, 0), 6, MF_BYPOSITION
End Sub

Private Sub CommandButton1_Click()
    Unload Me
End Sub

截图 :