Moves iter in tree_store to the position before 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 end of the level. Since 2.2
A GtkTreeIter.
A GtkTreeIter or NULL. [allow-none]
See Implementation
Moves iter in tree_store to the position before 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 end of the level. Since 2.2