Gets the known strictness of @filters. If the strictness is not known, %GTK_FILTER_MATCH_SOME is returned.
This value may change after emission of the #GtkFilter::changed signal.
This function is meant purely for optimization purposes, filters can choose to omit implementing it, but #GtkFilterListModel uses it.
the strictness of @self
See Implementation
Gets the known strictness of @filters. If the strictness is not known, %GTK_FILTER_MATCH_SOME is returned.
This value may change after emission of the #GtkFilter::changed signal.
This function is meant purely for optimization purposes, filters can choose to omit implementing it, but #GtkFilterListModel uses it.