if (SmartPtr<const Gtk_WrapperArea> area = findGtkWrapperArea(math_view->view, DOM::Element(elem)))
if (SmartPtr<const Gtk_WrapperArea> area = findGtkWrapperArea(math_view->view, elem))
gtk_math_view_unselect(GtkMathView* math_view, GdomeElement* elem){  g_return_if_fail(math_view);  g_return_if_fail(math_view->view);  g_return_if_fail(elem);  if (SmartPtr<const Gtk_WrapperArea> area = findGtkWrapperArea(math_view->view, DOM::Element(elem)))    {      area->setSelected(0);      paint_widget(math_view);    }}