Gtk.PrintOperation::request-page-setup

function callback(print_operation, context:Gtk.PrintContext, page_nr:Number, setup:Gtk.PageSetup, ):void;

Emitted once for every page that is printed, to give the application a chance to modify the page setup. Any changes done to setup will be in force only for printing this page.

Since 2.10

print_operation: instance of Gtk.PrintOperation that is emitting the signal
context: the Gtk.PrintContext for the current operation
page_nr: the number of the currently printed page (0-based)
setup: the Gtk.PageSetup