Hide close [X] button on excel vba userform for my progress bar

Question

I created a userform to show a progress bar when the macro is still importing sheets

The problem is the user can press the red [X] button that will close and interrupt the processing done.

Is there a way to hide this red button of doom so that potential users don't have any confusing buttons to click while it runs.

edit:

I have tried this

'Find the userform's Window
Private Declare Function FindWindow Lib "user32" _
        Alias "FindWindowA" ( _
        ByVal lpClassName As String, _
        ByVal lpWindowName As String) As Long

'Get the current window style
Private Declare Function GetWindowLong Lib "user32" _
        Alias "GetWindowLongA" ( _
        ByVal hWnd As Long, _
        ByVal nIndex As Long) As Long

'Set the new window style
Private Declare Function SetWindowLong Lib "user32" _
        Alias "SetWindowLongA" ( _
        ByVal hWnd As Long, _
        ByVal nIndex As Long, _
        ByVal dwNewLong As Long) As Long

Const GWL_STYLE = -16
Const WS_SYSMENU = &H80000

and I used this on userform_initialize

   Dim hWnd As Long, lStyle As Long

   'Which type of userform
   If Val(Application.Version) >= 9 Then
      hWnd = FindWindow("ThunderDFrame", Me.Caption)
   Else
      hWnd = FindWindow("ThunderXFrame", Me.Caption)
   End If

   'Get the current window style and turn off the Close button
   lStyle = GetWindowLong(hWnd, GWL_STYLE)
   SetWindowLong hWnd, GWL_STYLE, (lStyle And Not WS_SYSMENU)

I am getting this error message

this code was taken from here. I don't know what I'm doing wrong and I already removed the comments. This is the simplest code that I found so I would like to integrate it to my userform. Any help is appreciated.

Answer 1

Below is a routine that you can call like this:

subRemoveCloseButton MyForm

or from within your form:

subRemoveCloseButton Me 

Here's the code you'll need:

Private Const mcGWL_STYLE = (-16)
Private Const mcWS_SYSMENU = &H80000

'Windows API calls to handle windows
#If VBA7 Then
    Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
#Else
    Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
#End If

#If VBA7 Then
    Private Declare PtrSafe Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
#Else
    Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
#End If

#If VBA7 Then
    Private Declare PtrSafe Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
#Else
    Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
#End If


Public Sub subRemoveCloseButton(frm As Object)
    Dim lngStyle As Long
    Dim lngHWnd As Long

    lngHWnd = FindWindow(vbNullString, frm.Caption)
    lngStyle = GetWindowLong(lngHWnd, mcGWL_STYLE)

    If lngStyle And mcWS_SYSMENU > 0 Then
        SetWindowLong lngHWnd, mcGWL_STYLE, (lngStyle And Not mcWS_SYSMENU)
    End If

End Sub

Answer 2

This is an improvement of the above answer of @Peter Albert

• Windows API calls are now Office x64 safe
• FindWindow call was improved to find Excel UserForms only. The function in the original answer searches every window class (e.g. Explorer windows and other program's windows). Therefore it could happen that the [x] button of other programs or explorer windows have been removed when their name was the same name as the UserForm.

---

Private Const mcGWL_STYLE = (-16)
Private Const mcWS_SYSMENU = &H80000

'Windows API calls to handle windows
Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" ( _
    ByVal lpClassName As String, ByVal lpWindowName As String) As LongPtr
  
#If Win64 Then
    Private Declare PtrSafe Function GetWindowLongPtr Lib "user32" Alias "GetWindowLongPtrA" ( _
        ByVal hwnd As LongPtr, ByVal nIndex As Long) As LongPtr
    Private Declare PtrSafe Function SetWindowLongPtr Lib "user32" Alias "SetWindowLongPtrA" ( _
        ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As LongPtr) As LongPtr
#Else
    Private Declare PtrSafe Function GetWindowLongPtr Lib "user32" Alias "GetWindowLongA" ( _
        ByVal hwnd As LongPtr, ByVal nIndex As Long) As LongPtr
    Private Declare PtrSafe Function SetWindowLongPtr Lib "user32" Alias "SetWindowLongA" ( _
        ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As LongPtr) As LongPtr
#End If

Public Sub RemoveCloseButton(objForm As Object)
    Dim lngStyle As LongPtr
    Dim lngHWnd As LongPtr
    
    Dim lpClassName As String
    lpClassName = vbNullString
    If Val(Application.Version) >= 9 Then
       lpClassName = "ThunderDFrame"
    Else
       lpClassName = "ThunderXFrame"
    End If
    
    lngHWnd = FindWindow(lpClassName, objForm.Caption)
    lngStyle = GetWindowLongPtr(lngHWnd, mcGWL_STYLE)

    If lngStyle And mcWS_SYSMENU > 0 Then
        SetWindowLongPtr lngHWnd, mcGWL_STYLE, (lngStyle And Not mcWS_SYSMENU)
    End If
End Sub

ThunderDFrame?
The UserForms in Excel are actually of the Windows class ThunderDFrame, which is the class for all UserFroms in Microsoft Office applications after 2002. Before that, it was ThunderXFrame.