problem connecting signals

[Angelo Jerod Keresztes <kereszte egr msu edu>]

I have a simple problem, but dont know exactly how to fix it.

I have a few  GtkWidgets(pixmaps) that are packed into a
GtkScrolledWindow.

I need to get button_press events on the pixmaps themselves (so I know
which pixmap has been selected).  but nothing happens when I connect a
signal.  Here's a snippit of how I connect the signal:

        gtk_signal_connect( GTK_OBJECT(my_pixmap_widget),
                            "button_press_event",
                            GTK_SIGNAL_FUNC(pixmap_handler_event),
                            NULL );

Now if I connect the signal to the GtkScrolledWindow, the button pressed
events work, but I dont know which pixmap has been selected.

I need to know which pixmap has been selected, and they're packed inside
the ScrolledWindow.

How can I get the button_press_event to work on the pixmap widgets?

thanks
angelo