API for gtk_settings_set_long_property

[Tian <tian-ml c-sait net>]

Hello,

This is a follow-up of my questions about how we could let the user change the
accelerators in a Gtk2-Perl application.

Thanks to Colin Leroy, one of the Claws Mail's developers, I know how they do
in this application. They use AccelMap and a few tests show me it should be OK 
ith that. But they also use gtk_settings_set_long_property to change the value
for gtk-can-change-accels.

So I'd like to know how we could do that also in Perl. I didn't find a
corresponding method in the Gtk2-Perl API. Is this something that is missing
or are there other ways to achieve the same goal?

Thank you for your help.

Tian.