Adds @filter to the list of #GtkRecentFilter objects held by @chooser.
If no previous filter objects were defined, this function will call gtk_recent_chooser_set_filter().
a #GtkRecentFilter
2.10
See Implementation
Adds @filter to the list of #GtkRecentFilter objects held by @chooser.
If no previous filter objects were defined, this function will call gtk_recent_chooser_set_filter().