setFilterFunc

By setting a filter function on the @box one can decide dynamically which of the children to show.

For instance, to implement a search function that only shows the children matching the search terms.

The @filter_func will be called for each child after the call, and it will continue to be called each time a child changes (via method@Gtk.FlowBoxChild.changed) or when method@Gtk.FlowBox.invalidate_filter is called.

Note that using a filter function is incompatible with using a model (see method@Gtk.FlowBox.bind_model).

Parameters