RecurLoopGui:tree_append:(u8*,u8*,u8*,u8*,i64)
Adds a tree row; null parent adds a root row. Returns an owned iterator, or null on failure; release with Gui:tree_iter_free.
Adds a tree row; null parent adds a root row. Returns an owned iterator, or null on failure; release with Gui:tree_iter_free.