gtk:tree-view-column-widget (object)

object -- a gtk:tree-view-column object
widget -- a gtk:widget child widget, or nil

Accessor of the widget slot of the gtk:tree-view-column class. The gtk:tree-view-column-widget function returns the child widget in the button on the tree view column header. If a custom widget has not been set then nil is returned. The (setf gtk:tree-view-column-widget) function sets the child widget. If the child widget is nil, then the header button is set with a gtk:label widget set to the title of the tree view column. The gtk:tree-view-column implementation is deprecated since 4.10. Please do not use it in newly written code.