The spin button update policy determines whether the spin button displays
values even if they are outside the bounds of its adjustment.
See gtk_spin_button_set_update_policy().
GTK_UPDATE_ALWAYS
When refreshing your GtkSpinButton, the value is
always displayed
GTK_UPDATE_IF_VALID
When refreshing your GtkSpinButton, the value is
only displayed if it is valid within the bounds of the spin button's
adjustment
The spin button update policy determines whether the spin button displays values even if they are outside the bounds of its adjustment. See gtk_spin_button_set_update_policy(). GTK_UPDATE_ALWAYS When refreshing your GtkSpinButton, the value is always displayed GTK_UPDATE_IF_VALID When refreshing your GtkSpinButton, the value is only displayed if it is valid within the bounds of the spin button's adjustment