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POTStringList load memorystream? <Delphi>
 

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  1. POTStringList load memorystream? <Delphi>
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    <p>edited :</p> <p>My file has several lines. I encrypt the file onto a new file. I want to store each line of decrypted file (=a stream) into StringList. </p> <p>First, I have a file contain :</p> <pre><code>aa bb cc </code></pre> <p>I encrypt the file with this function :</p> <pre><code>procedure EnDecryptFile(pathin, pathout: string; Chave: Word) ; var InMS, OutMS: TMemoryStream; cnt: Integer; C: byte; begin InMS := TMemoryStream.Create; OutMS := TMemoryStream.Create; try InMS.LoadFromFile(pathin) ; InMS.Position := 0; for cnt := 0 to InMS.Size - 1 do begin InMS.Read(C, 1) ; C := (C xor not (ord(chave shr cnt))) ; OutMS.Write(C, 1) ; end; OutMS.SaveToFile(pathout) ; finally InMS.Free; OutMS.Free; end; end; </code></pre> <p>My purpose now is to store original value of each line into StringList. I don't want to store decrypted file into harddisk, so I use stream.</p> <p>This is the function to decrypt the file into stream :</p> <pre><code>procedure DecryptFile(pathin: string; buff: TMemoryStream; Chave: Word); var InMS: TMemoryStream; cnt: Integer; C: byte; begin InMS := TMemoryStream.Create; try InMS.LoadFromFile(pathin); InMS.Position := 0; for cnt := 0 to InMS.Size - 1 do begin InMS.Read(C, 1); C := (C xor not(ord(Chave shr cnt))); buff.Write(C, 1); end; // buff.SaveToFile('c:\temp\dump.txt') ; finally InMS.free; end; end; </code></pre> <p>--</p> <pre><code> bbuffer := TMemoryStream.Create; try DecryptFile(path, bbuffer, 10); // //ShowMessage(IntToStr(bbuffer.size)); // output : 1000 bbuffer.Position := 0; SL := TStringList.Create; try SL.LoadFromStream(bbuffer); for I := 0 to SL.Count - 1 do // SL.Count = 1 begin; //add each line of orginal file into SL?? end; finally SL.free; end; finally bbuffer.free; end; </code></pre>
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      1. POTStringList load memorystream? <Delphi>
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    1. COI tested your code with the testfile provided and everything works like it should. The stringlist contains 3 lines (aa, bb, cc) at the end of the encrypt/decrypt cycle. What exactly is your question?
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    2. COI want to hide my face. Yes it works. I wonder why I got SL.Count=1 several hours ago. lol
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