emitRequestPageSetup   
  fun emitRequestPageSetup(context: PrintContext, pageNr: <Error class: unknown class>, setup: PageSetup)(source)
Emits the "request-page-setup" signal. See onRequestPageSetup.
Parameters
context
the GtkPrintContext for the current operation
pageNr 
the number of the currently printed page (0-based)
setup
the GtkPageSetup