-void
-ScreenKDM::write_files (list<ScreenKDM> screen_kdms, boost::filesystem::path directory, dcp::NameFormat name_format, dcp::NameFormat::Map name_values)
+int
+ScreenKDM::write_files (
+ list<ScreenKDM> screen_kdms,
+ boost::filesystem::path directory,
+ dcp::NameFormat name_format,
+ dcp::NameFormat::Map name_values,
+ boost::function<bool (boost::filesystem::path)> confirm_overwrite
+ )