gobject:type-class-ref (gtype)

gtype -- a g:type-t type ID of a classed type

The pointer to the g:type-class instance for the given gtype.

Increments the reference count of the class instance belonging to gtype and returns the pointer to the class instance. This function will create the class instance if it does not exist already. Returns nil when gtype is not a valid type ID for a classed type.

(g:type-class-ref "GApplication") => #.(SB-SYS:INT-SAP #X55FA5306FE40)
(g:type-from-class *) => #<GTYPE :name "GApplication" :id 94533623145984>
(g:type-class-ref "GAction") => NIL
(g:type-class-ref "gdouble") => NIL
(g:type-class-ref "unknown") => NIL