>>I am trying to get some specific calculations off of items sold in a POS system and print them on a report. Unfortunately, because these calculations vary greatly on several factors... it would be next to impossible to put them in the small EXPRESSION field in the report writer itself. In addition, trying to store them in temporary variables during the actual criteria step of the report call would be nearly impossible as well... to many factors control what needs to be calculated.
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>>I can write the actual calculations in a couple of code snippets and want to know if there is a way to call that coded routine from the actual report and have it return to the report the final calculation for printing.
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>>Thanks ahead of time.
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>To expand Ed's solution. Put a textbox on the form with expression MyFunction(). Let your function to return empty string. Add remove if blank option to this textbox.

I think Ed wouldn't expand his suggestion this way:) Why would function return an empty string instead of a calculation result? Isn't that already known since foxproDOS as UDF?
Cetin