See [gtk.spin_button.SpinButton.activate] for what counts as activation.
SpinButton.activatesDefault
bool activatesDefault() @propertyGet activatesDefault property.
Returns
Whether to activate the default widget when the spin button is activated.
void activatesDefault(bool propval) @propertySet activatesDefault property.
Parameters
propval | Whether to activate the default widget when the spin button is activated. See [gtk.spin_button.SpinButton.activate] for what counts as activation. |