Moves @iter in @store to the position before @position. Note that this function only works with unsorted stores. If @position is %NULL, @iter will be moved to the end of the list.
A GtkTreeIter
See Implementation
Moves @iter in @store to the position before @position. Note that this function only works with unsorted stores. If @position is %NULL, @iter will be moved to the end of the list.