When creating an RPG program that creates a report that uses page segments for overlays, I needed to know exactly...
what line the report was on, in order to determine the location of the page in which to print the page segment. This page segment would not always print in the same location. It would vary, depending on the amount of information on the report. The length from the top of the page to print this overlay was determined by taking the current line being processed and dividing that number by the LPN value. In my case, I was printing eight lines per inch. Instead of inserting a line counter into the program that incremented each time a line was printed, I took advantage of the File Information Data Structure (INFDS), and let it provide that information to me.
FOUTFILE O E DISK USROPN INFDS(PRTFBK) . . . DPRTFBK DS D cur_line 367 368I 0 D cur_page 369 372I 0 . . . C Eval LOGO_LOC = (Cur_line/8)
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