[Lazarus] LNet + fcl-web 2.3.1 fastcgi.pp

AleŇ° Katona almindor at gmail.com
Sat Jul 11 10:06:18 CEST 2009


Hi all!
i wanted to compress a file using TCompressionStream, with a progressbar to
show the progress.
i wrote the code but they got Compilation Error:

var
  fs,ms:TMemoryStream;
  cs:TCompressionStream;
  size:int64;
begin
  fs:=TMemoryStream.Create;
  fs.LoadFromFile(SourceFile.Text);
  size:=fs.Size;

  ms:=TMemoryStream.Create;
  ms.Write(size,sizeof(size));

  cs:=TCompressionStream.create(clMax,ms);
  pb.Max:=Integer(size div 1024);
  cs.onProgress:=CsOnProgress;
  fs.SaveToStream(cs);
  cs.Free;

  ms.SaveToFile(DestFile.Text);
  ms.Free;
  fs.Free;
end;


the Error Messages are:
UCryptForm.pas(105,6) Error: identifier idents no member "onProgress"
UCryptForm.pas(105,30) Error: Wrong number of parameters specified for call
to "CsOnprogress"
UCryptForm.pas(63,22) Hint: Found declaration:
TCryptForm.CsOnprogress(TObject);
UCryptForm.pas(198) Fatal: There were 2 errors compiling module, stopping

i searched on the web, and found this page:
http://community.freepascal.org:10000/docs-html/fcl/zstream/tcompressionstream.onprogress.html
in this page, the OnProgress property was declared as "public", and on my
machine, the property is declared as "protected".

Can anybody tell me why?
Thanks in advance.
-- 
Regards,
Yan Chengyuan
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