Delphi ActiveX

Change a Filename before Unzipping

See more Zip Examples

How to open a zip and modify the filename of one or more files within the zip before unzipping. Delphi ActiveX

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;
numFilesUnzipped: Integer;

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);

success := zip.OpenZip('test.zip');
if (success = 0) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;

entry := TChilkatZipEntry.Create(Self);

success := zip.EntryOf('hamlet.xml',entry.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;
entry.FileName := 'hamlet2.xml';

success := zip.EntryOf('helloWorld.pl',entry.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;
entry.FileName := 'hw.pl';

// Now unzip to the "test" subdirectory, under our current
// working directory:
numFilesUnzipped := zip.Unzip('test');
if (numFilesUnzipped < 0) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;

// The filenames within the .zip are unchanged, but it unzipped
// test/hw.pl and test/hamlet2.xm
end;