Makes default_page_setup the default page setup for op. This page setup will be used by gtk_print_operation_run(), but it can be overridden on a per-page basis by connecting to the "request-page-setup" signal. Since 2.10
a GtkPageSetup, or NULL. [allow-none]
See Implementation
Makes default_page_setup the default page setup for op. This page setup will be used by gtk_print_operation_run(), but it can be overridden on a per-page basis by connecting to the "request-page-setup" signal. Since 2.10