gtk:tree-view-headers-visible (object)

object -- a gtk:tree-view widget
visible -- true if the headers are visible

Accessor of the headers-visible slot of the gtk:tree-view class. The gtk:tree-view-headers-visible function returns true if the headers on the tree view are visible. The (setf gtk:tree-view-headers-visible) function sets the visibility state of the headers. The gtk:tree-view implementation is deprecated since 4.10. Please do not use it in newly written code.