gtk:expander-spacing (object)

object -- a gtk:expander widget
spacing -- an integer with the distance between the expander and child widget in pixels

Accessor of the spacing slot of the gtk:expander class. The gtk:expander-spacing function returns the spacing between the expander and child widget. The (setf gtk:expander-spacing) function sets the spacing field of the expander. The gtk:expander-spacing function has been deprecated since version 3.20 and should not be used in newly written code. Use margins on the child instead.