>>>>I would like to know if there is a way to prevent the user from printing a report while previewing a report. I would like to build a demo version that allows the user to view but not print the report.
>>>>
>>>>Thanks in advance.
>>>

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Try

REPORT FORM YourReport NOCONSOLE PREVIEW WINDOW TO FILE NUL

>>
>>You should submit this a faq
>
>This code does not work.

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You are right,

Try

REPORT FORM YourReport NOCONSOLE PREVIEW IN SCREEN TO FILE NUL

instead.

That will work.
The output is then directed to the nul device which means that there is no output at all.
You have to include the IN SCREEN or otherwise IN WINDOW windowname, or otherwise it will error on a missing comma. (probably a small bug in VFP.)