getPageSetup  
  Returns the page setup of @setup.
It may be different from the GtkPrintDialog's page setup if the user changed it during the setup process.
Return
the page setup, or NULL
Since
4.14
Returns the page setup of @setup.
It may be different from the GtkPrintDialog's page setup if the user changed it during the setup process.
the page setup, or NULL
4.14