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