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(Delphi ActiveX) Unzip Encrypted Text into a String VariableDemonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable. Note: This example requires Chilkat v11.0.0 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB; ... procedure TForm1.Button1Click(Sender: TObject); var success: Integer; zip: TChilkatZip; entry: TChilkatZipEntry; lineEndingBehavior: Integer; srcCharset: WideString; strCsv: WideString; begin success := 0; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. zip := TChilkatZip.Create(Self); // Set the password required for decrypting. zip.DecryptPassword := 'myPassword'; success := zip.OpenZip('encrypted.zip'); if (success = 0) then begin Memo1.Lines.Add(zip.LastErrorText); Exit; end; // Locate the file within the Zip to be unzipped into a string variable: entry := TChilkatZipEntry.Create(Self); success := zip.EntryMatching('*.csv',entry.ControlInterface); if (success = 0) then begin Memo1.Lines.Add(zip.LastErrorText); Exit; end; // lineEndingBehavior: // 0 = leave unchanged. // 1 = convert all to bare LF's // 2 = convert all to CRLF's lineEndingBehavior := 0; srcCharset := 'utf-8'; strCsv := entry.UnzipToString(lineEndingBehavior,srcCharset); Memo1.Lines.Add(strCsv); end; |
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