ListStore.insertAfter

void insertAfter(out gtk.tree_iter.TreeIter iter, gtk.tree_iter.TreeIter sibling = null)

Inserts a new row after sibling. If sibling is null, then the row will be prepended to the beginning of the list. iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call [gtk.list_store.ListStore.set] or [gtk.list_store.ListStore.setValue].

Parameters

`iter`	An unset #GtkTreeIter to set to the new row
`sibling`	A valid #GtkTreeIter, or null