pango:layout-iter-cluster-extents (iter ink logical)

iter -- a pango:layout-iter instance
ink -- a pango:rectangle instance to fill with the values of the ink extents, or nil
logical -- a pango:rectangle instance to fill with the values of the ink extents, or nil

Gets the extents of the current cluster, in Pango layout coordinates, origin is the top left of the entire Pango layout.