Gtk.PrintOperation.prototype.set_use_full_page

function set_use_full_page(full_page:Boolean):void {
    // Gjs wrapper for gtk_print_operation_set_use_full_page()
}

If full_page is true, the transformation for the cairo context obtained from Gtk.PrintContext puts the origin at the top left corner of the page (which may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet). Otherwise, the origin is at the top left corner of the imageable area (i.e. inside the margins).

Since 2.10

full_page

true to set up the Gtk.PrintContext for the full page