How to get the print preview and otf data in SAP Script

hi SAP experts,

can somebody tell me how to get the print preview of sap script while getting the otf data.

I have set the ITCPO-TDGETOTF = 'X' option in OPEN FORM but when i give it its not showing the output. How can  I see output when I click on print preview? I have seen so many posts but nothing worked out.

Can some one tell me how can we achieve both print preview and otf data in close_form .

Thanks

Raj