g-object-pointer (object)

Accessor of the pointer slot of the g-object class.

The pointer slot access function gets the foreign C pointer of a g-object instance.

(setq label (make-instance 'gtk-label)) => #<GTK-LABEL {E2DB181}>
(g-object-pointer label) => #.(SB-SYS:INT-SAP #X081BDAE0)