gtk:tree-list-row-parent (listrow)

listrow -- a gtk:tree-list-row object

The parent gtk:tree-list-row object.

Gets the list row representing the parent for listrow. That is the list row that would need to be collapsed to make this list row disappear. If listrow is a list row corresponding to the root model, nil is returned. The value returned by this function never changes until the list row is removed from its model at which point it will forever return nil.