if (math_view->cursor_visible) update_widget(math_view);
if (math_view->cursor_visible) gtk_math_view_update(math_view);
GTKMATHVIEW_METHOD_NAME(set_cursor_visible)(GtkMathView* math_view, GtkMathViewCursor visible){  g_return_if_fail(math_view != NULL);  if (math_view->cursor_visible != visible)    {      math_view->cursor_visible = visible;      if (math_view->cursor_visible) update_widget(math_view);    }}