Makes default_page_setup the default page setup for op.
This page setup will be used by gtk.print_operation.PrintOperation.run, but it can be overridden on a per-page basis by connecting to the signalGtk.PrintOperation::request-page-setup signal.
a gtk.page_setup.PageSetup
Makes default_page_setup the default page setup for op.
This page setup will be used by gtk.print_operation.PrintOperation.run, but it can be overridden on a per-page basis by connecting to the signalGtk.PrintOperation::request-page-setup signal.