private void WmNcLButtonUp (ref Message m)
{
if (ActiveMaximizedMdiChild != null && ActiveMenu != null) {
ActiveMaximizedMdiChild.HandleMenuMouseUp (ActiveMenu,
LowOrder ((int)m.LParam.ToInt32 ()),
HighOrder ((int)m.LParam.ToInt32 ()));
}
base.WndProc (ref m);
}