void gtk_tree_store_set_column_types ( GtkTreeStore* tree_store, int n_columns, GType* types )
Sets the type of the columns in a tree store.
This function is meant primarily for types that inherit from
GtkTreeStore, and should only be used when constructing a new
This functions cannot be called after a row has been added,
or a method on the
GtkTreeModel interface is called on the
Deprecated since: 4.10