An instance of an Excel-VBA form opens with an error, if it was closed from the top right red `X` - vba

Question

Prehistory
I have read the best practises for creating a form, concerning the fact that one should always refer to an object of the form and not the form itself. Thus, I have decided to build a boiler-plate form for myself.
The problem
Everything ran smoothly, until the moment I have decided to close the form with the top right red X. It closes ok. But then, when I try to open the form again, I get this runtime error:
The error is on objPresenter.Show (see the code below). Obviously, it does not enter in the if above. But the problem is that the closing from the X does not work fine. When I close the form from the End button, anything works. And even, if I copy the code for the closing from the btnEnd to UserForm_QueryClose it still does not work the same.
The form
Thus, I have a modMain, frmMain and clsSummaryPresenter, which all take care of the form. I start the code from modMain
My form looks like this:
It has btnRun, btnExit, lblInfo. The name of the class is frmMain.
The code
In frmMain:
Option Explicit
Public Event OnRunReport()
Public Event OnExit()
Public Property Get InformationText() As String
InformationText = lblInfo.Caption
End Property
Public Property Let InformationText(ByVal value As String)
lblInfo.Caption = value
End Property
Public Property Get InformationCaption() As String
InformationCaption = Caption
End Property
Public Property Let InformationCaption(ByVal value As String)
Caption = value
End Property
Private Sub btnRun_Click()
RaiseEvent OnRunReport
End Sub
Private Sub btnExit_Click()
RaiseEvent OnExit
End Sub
Private Sub UserForm_QueryClose(CloseMode As Integer, Cancel As Integer)
If CloseMode = vbFormControlMenu Then
Cancel = True
Hide
'Even if I change the two lines above with this the error happens:
'RaiseEvent OnExit
'However, if I simply write END in stead of those two lines
'anything works quite ok...
'but that is a bit brutal.
End If
End Sub
In clsSummaryPresenter
Option Explicit
Private WithEvents objSummaryForm As frmMain
Private Sub Class_Initialize()
Set objSummaryForm = New frmMain
End Sub
Private Sub Class_Terminate()
Set objSummaryForm = Nothing
End Sub
Public Sub Show()
If Not objSummaryForm.Visible Then
objSummaryForm.Show vbModeless
Call ChangeLabelAndCaption("Press Run to Start", "Starting")
End If
With objSummaryForm
.Top = CLng((Application.Height / 2 + Application.Top) - .Height / 2)
.Left = CLng((Application.Width / 2 + Application.Left) - .Width / 2)
End With
End Sub
Public Sub Hide()
If objSummaryForm.Visible Then objSummaryForm.Hide
End Sub
Public Sub ChangeLabelAndCaption(strLabelInfo As String, strCaption As String)
objSummaryForm.InformationText = strLabelInfo
objSummaryForm.InformationCaption = strCaption
objSummaryForm.Repaint
End Sub
Private Sub objSummaryForm_OnRunReport()
MainGenerateReport
Refresh
End Sub
Private Sub objSummaryForm_OnExit()
Hide
End Sub
Public Sub Refresh()
With objSummaryForm
.lblInfo = "Ready"
.Caption = "Task performed"
End With
End Sub
In modMain
Option Explicit
Private objPresenter As clsSummaryPresenter
Public Sub MainGenerateReport()
objPresenter.ChangeLabelAndCaption "Starting and running...", "Running..."
GenerateNumbers
End Sub
Public Sub GenerateNumbers()
Dim lngLong As Long
Dim lngLong2 As Long
tblMain.Cells.Clear
For lngLong = 1 To 4
For lngLong2 = 1 To 1
tblMain.Cells(lngLong, lngLong2) = lngLong * lngLong2
Next lngLong2
Next lngLong
End Sub
Public Sub ShowMainForm()
If (objPresenter Is Nothing) Then
Set objPresenter = New clsSummaryPresenter
End If
objPresenter.Show
End Sub
The question
Once again, why I cannot close the form with the red X? I can substitute the code in UserForm_QueryClose with End but that is a bit brutal. Any ideas?

Answer 1

Changing the form's mode from vbModeless to vbModal gives you an earlier and more informative failure:
The problem seems to be because the Cancel = True assignment in the QueryClose handler, isn't working for some reason.
The signature for the QueryClose handler is as follows:
Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)
Yours is:
Private Sub UserForm_QueryClose(CloseMode As Integer, Cancel As Integer)
You should never type these handler signatures manually yourself - instead, use the drop-down in the codepane's top-right corner, and have the VBE generate the handler stubs for you:
That way your handler signatures will always match the interface they're for.
VBA doesn't really care about parameter names in handlers: the way the runtime matches a handler signature is by matching the parameter indices and their types, against the expected ones. Since both QueryClose parameters are Integer values, inverting them compiles just fine - except when you set Cancel = True, what the runtime sees is that you've assigned CloseMode = -1 and left the Cancel parameter alone.
Which means your form doesn't cancel its close, and thus the object gets destroyed every time.
Invert the parameters in your QueryClose handler, and everything works perfectly fine and exactly as intended.

Answer 2

Calling the form like so works just fine for me:
Option Explicit
dim mfrmMain as ufMain
Sub ShowMainForm2()
If ufMain Is Nothing Then
Set ufMain = New mfrmMain
End If
mfrmMain.Show vbModeless
End Sub