GtkItemFactoryEntry question

[Peter Jay Salzman <p dirac org>]

hi there,

i'm trying to understand some code.  here are some entries in the menubar:

        static GtkItemFactoryEntry menu_items[] = {
          { "/_File",         NULL,         NULL,          0, "<Branch>" },
          { "/File/_New",     "<control>N", hello,         0, NULL },
        }

however, the hello function takes two arguments:

        void hello( GtkWidget *widget, gpointer data );

when the call to hello is made by clicking File | New, , what *widget gets
passed?  and what data?  the menu item doesn't give any arguments.

thanks!
pete

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