message: Fix rendering artifacts around mCtrl menu on Win10
  They were manifesting themselves during resizing at non-scaled low DPI
  resolution.
diff: @@ -38,6 +38,8 @@ namespace
  int g_mctrlInitialized = 0;
  +const int MENUBAR_OFFSET = -2;
  +
  } // anonymous namespace
  @@ -183,7 +185,7 @@ wxPoint wxFrameWithWindows10Menubar::GetClientAreaOrigin() const
  wxPoint pt = wxFrame::GetClientAreaOrigin();
  if (IsUsed())
  {
  - pt.y += m_menuBar->GetSize().y;
  + pt.y += m_menuBar->GetSize().y + MENUBAR_OFFSET;
  }
  return pt;
  }
  @@ -202,7 +204,7 @@ void wxFrameWithWindows10Menubar::PositionToolBar()
  int width, height;
  wxWindow::DoGetClientSize(&width, &height);
  - int y = 0;
  + int y = MENUBAR_OFFSET;
  // use the 'real' MSW position here, don't offset relatively to the
  // client area origin
  @@ -214,7 +216,7 @@ void wxFrameWithWindows10Menubar::PositionToolBar()
  if (toolbar && toolbar->IsShown())
  {
  int tbh = toolbar->GetSize().y;
  - toolbar->SetSize(0, y, width, tbh, wxSIZE_NO_ADJUSTMENTS);
  + toolbar->SetSize(0, y, width + 8, tbh, wxSIZE_NO_ADJUSTMENTS);
  }
  }
  