XIconifyWindow -> Gtk::???

[muppet <scott asofyet org>]

how does one tell a gtk window to iconify itself?

the closest i could come to figuring it out (in a five minute search of 
manpages and gtk api docs) was
1. to get a hold of the xid of the window, the display, and the screen 
number and call XIconifyWindow, but i can't figure out where to get hold 
of those numbers from gtk and i don't have the Xlib bindings installed...
2. use  Gtk::Gdk->event_send_client_message ($event, $xid) to achieve 
what XIconifyWindow does, which looks really freakin complicated for 
someone who thoroughly enjoys the way both Gtk and perl shield him from 
Xlib.
any ideas?