get_selection

Gets the set containing all currently selected items in the model.

This function may be slow, so if you are only interested in single item, consider using is_selected or if you are only interested in a few consider get_selection_in_range.

Parameters:

this	a SelectionModel

Returns:

a Bitset containing all the values currently selected in this. If no items are selected, the bitset is empty. The bitset must not be modified.