// a call to gtk_mdi_page_change_callback with an invalid parent
// (because gtk_mdi_page_change_callback expects a wxMDIClientWindow but
// at that point of the dtor chain we are a simple wxWindow!)
- g_signal_handlers_disconnect_by_func(m_widget,
+ g_signal_handlers_disconnect_by_func(m_widget,
(gpointer)gtk_mdi_page_change_callback,
GetParent());
}