>i have this POS printer that requires escape codes to control it.
>
>i tried
>
>set device to printer
>?chr(27)+chr(13)+chr(12)
>
>nothing happened
>
>any suggestions will be greatly appreciated.
>
>PS i'm using VFP 5

Try using ???. This bypasses the printer driver and sends the codes directly to the printer.
??? CHR(27)+CHR(13)+CHR(12)