I think file#9588 "Printer Control Functions" will do this.

>Hi there. Do you know how I can toggle between printer orientation landscape/portrait through code. I don't want to allow users to have access to the printer dialog box (way too complicated for them!) and I want to avoid passing printer codes because my VFP6 app could print to any of 3 different printers: HPLaser5N, Brother HL4V, HPLaser4L.
>I'm feeling desperate. Any ideas friends?