Stop flat scroll bar if we have it:
      If Not (m_bNoFlatScrollBars) Then
         UninitializeFlatSB m_hWnd
      End If
    
      On Error GoTo 0
      ' Remove subclass:
      DetachMessage Me, m_hWnd, WM_HSCROLL
      DetachMessage Me, m_hWnd, WM_VSCROLL
      DetachMessage Me, m_hWnd, WM_MOUSEWHEEL
      DetachMessage Me, m_hWnd, WM_NCLBUTTONDOWN
      DetachMessage Me, m_hWnd, WM_NCMBUTTONDOWN
      DetachMessage Me, m_hWnd, WM_NCRBUTTONDOWN
   End If
   m_hWnd = 0
   m_bInitialised = False
End Sub