(Delphi ActiveX) Unzip

See more Zip Examples

Unzip a zip archive, creating the subfolders as needed.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
zip: TChilkatZip;
success: Integer;
numFilesUnzipped: Integer;

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

zip := TChilkatZip.Create(Self);

success := zip.OpenZip('qa_data/zips/sample.zip');
if (success <> 1) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;

// Unzip to c:/temp/testDir
// If c:/temp/testDir does not yet exist, it will be auto-created.
numFilesUnzipped := zip.Unzip('c:/temp/testDir');
if (numFilesUnzipped < 0) then
  begin
    Memo1.Lines.Add(zip.LastErrorText);
    Exit;
  end;

// If, for example, the zip contained these files:

// aaa/pigs.json
// bbb/base64Cert.txt
// bbb/sub1/brasil_cert.pem
// bbb/sub2/penguins.gif
// bbb/sub2/starfish.jpg
// hamlet.xml
// hello.pdf

// then after unzipping, the following files will be created:

// c:/temp/testDir/aaa/pigs.json
// c:/temp/testDir/bbb/base64Cert.txt
// c:/temp/testDir/bbb/sub1/brasil_cert.pem
// c:/temp/testDir/bbb/sub2/penguins.gif
// c:/temp/testDir/bbb/sub2/starfish.jpg
// c:/temp/testDir/hamlet.xml
// c:/temp/testDir/hello.pdf

zip.CloseZip();
end;