Gets the set of selected items in a range.
This function is an optimization for [method@Gtk.SelectionModel.get_selection] when you are only interested in part of the model's
selected state. A common use case is in response to the [signal@Gtk.SelectionModel:GtkSelectionModel:selection-changed
]
signal.
this |
a `GtkSelectionModel` |
position |
start of the queried range |
n_items |
number of items in the queried range |
A `GtkBitset` that matches the selection state for the given range with all other values being undefined. The bitset must not be modified. |