Ends interaction with a text object or item. Causes the
ITEM_TEXT_CLOSED event to fire, indicating that ItemText APIs are no longer valid.
Called by the default UI when closing the ItemTextFrame, which is used for both readable world objects (books, plaques, gravestones, etc) and readable items (looted books, various quest-related scrolls and parchments, saved mail messages, etc).
See also Item Text functions.