TOPIC:

LazReport: FRP version 28 failed to Open 9 years 6 months ago #7133

Luca Topic Author Offline Junior Member Posts: 33 Thank you received: 2	Hi. I created some reports with Laz Report included in CT 5.20. From Preview I saved them as FRP files. Version of files is 28. In CT 5.30 I cannot open them. Program stopped in LR_Class row 8954, because frCreateObject(b, s, P^.Page) return nil when is called using following parameter: b = 101 s = '' If I save FRP from CT 5.30 no problem even if I cannot open them from CT 5.20. Regards Luca
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LazReport: FRP version 28 failed to Open 9 years 6 months ago #7134

Luca
Topic Author
Offline
Junior Member
Posts: 33
Thank you received: 2

Just to say I probably found the problem.

In Laz Report included in CT 5.30 a new property named ParagraphGap has been added to TfrCustomMemoView.
The value is readed from stream if version > 26 (row 4400):

if frVersion>26 then
    begin
      Stream.Read(FCursor, SizeOf(FCursor));
      frReadMemo(Stream, FOnClick);
      frReadMemo(Stream, FOnMouseEnter);
      frReadMemo(Stream, FOnMouseLeave);
      FDetailReport:=frReadString(Stream);
      Stream.Read(FParagraphGap, SizeOf(FParagraphGap));
    end;

The code included in CT 5.20 is:

    if frVersion>26 then
    begin
      Stream.Read(FCursor, SizeOf(FCursor));
      frReadMemo(Stream, FOnClick);
      frReadMemo(Stream, FOnMouseEnter);
      frReadMemo(Stream, FOnMouseLeave);
      FDetailReport:=frReadString(Stream);
    end;

So the stream reading point is moved on and this create the issue.
If I comment the Stream.Read... row all is fine to maintain backward compatiblity but this create a problem opening report created with CT 5.30.
Regards

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LazReport: FRP version 28 failed to Open 9 years 6 months ago #7137

Sternas Stefanos Offline Moderator Ex Pilot, M.Sc, Ph.D Posts: 4535 Thank you received: 1114	Thanks Sir we will check and fix this PilotLogic Architect and Core Programmer
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LazReport: FRP version 28 failed to Open