Creates a new GtkFileFilter with no rules added to it.
Such a filter doesn't accept any files, so is not
particularly useful until you add rules with
gtk_file_filter_add_mime_type(), gtk_file_filter_add_pattern(),
or gtk_file_filter_add_custom(). To create a filter
Since 2.4
Creates a new GtkFileFilter with no rules added to it. Such a filter doesn't accept any files, so is not particularly useful until you add rules with gtk_file_filter_add_mime_type(), gtk_file_filter_add_pattern(), or gtk_file_filter_add_custom(). To create a filter Since 2.4