Delphi DLL Requires Chilkat v11.0.0+

Unzip Encrypted Text into a String Variable

See more Zip Examples

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable. Delphi DLL

var
success: Boolean;
zip: HCkZip;
entry: HCkZipEntry;
lineEndingBehavior: Integer;
srcCharset: PWideChar;
strCsv: PWideChar;

begin
success := False;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

zip := CkZip_Create();

//  Set the password required for decrypting.
CkZip_putDecryptPassword(zip,'myPassword');

success := CkZip_OpenZip(zip,'encrypted.zip');
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

//  Locate the file within the Zip to be unzipped into a string variable:
entry := CkZipEntry_Create();
success := CkZip_EntryMatching(zip,'*.csv',entry);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    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 := CkZipEntry__unzipToString(entry,lineEndingBehavior,srcCharset);
Memo1.Lines.Add(strCsv);

CkZip_Dispose(zip);
CkZipEntry_Dispose(entry);