Gtk::StatusIcon missing some virtual signal handlers?

[phan <phanyx o2 pl>]

Hello,

	I've got something like this:

----------
class Derivered: public Gtk::StatusIcon {
(...)
protected:
    virtual bool on_button_press_event (GdkEventButton* event);
(...)
};

bool Derivered::on_button_press_event (GdkEventButton* event) {
	// do stuff; return false;
}
----------

In other words, I've subclassed Gtk::StatusIcon and overridden on_button_press_event() virtual method. The problem is, that the
method isn't called upon clicking on the status icon in the system tray without manually connecting it to
signal_button_press_event() (it should be connected automatically, if I correctly understood the
http://library.gnome.org/devel/gtkmm-tutorial/unstable/sec-overriding-default-signal-handlers.html.en tutorial; or am I wrong?). 

After further investigation, it turned out, that gtkmm/statusicon.h is actually missing this virtual method (in matter of fact, it has
only the on_size_changed() method). If I understand it right, it should be parent virtual method if we want to use "automatically
connected" feature, right?

On this reference manual: http://library.gnome.org/devel/gtkmm/unstable/classGtk_1_1StatusIcon.html it is said, that
on_button_press_event() is available there. If this method has been removed along the developing road, maybe this manual
should be updated?

I've googled this report: http://old.nabble.com/Mouse-Events-and-Gtkmm-Gdk-td12302003.html , but it seems unrelated, since
Gtk::StatusIcon correctly emits signal_button_press_event.

Thanks for any replies and sorry if this problem is a trivial one.

Regards,
phan