This function is meant primarily for `GObject`s that inherit from `GtkListStore`, and should only be used when constructing a new `GtkListStore`.
It will not function after a row has been added, or a method on the `GtkTreeModel` interface is called.
this |
A `GtkListStore` |
types |
An array length n of `GType`s |
n_columns |
Number of columns for the list store |