Moves @iter in @tree_store to the position after @position. @iter and @position should be in the same level. Note that this function only works with unsorted stores. If @position is %NULL, @iter will be moved to the start of the level.
A #GtkTreeIter.
See Implementation
Moves @iter in @tree_store to the position after @position. @iter and @position should be in the same level. Note that this function only works with unsorted stores. If @position is %NULL, @iter will be moved to the start of the level.