gtk:adjustment-upper (object)

object -- a gtk:adjustment object
upper -- a number coerced to a double float for the maximum value

The accessor for the upper slot gets or sets the maximum value of the adjustment. Note that values will be restricted by the (upper - page-size) value if the page-size value is nonzero.

See the gtk:adjustment-lower function about how to compress multiple emissions of the "changed" signal when setting multiple adjustment properties.