(Delphi DLL) Gzip a File

Demonstrates how to create a .gz (gzipped file).

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Gzip;

...

procedure TForm1.Button1Click(Sender: TObject);
var
gzip: HCkGzip;
success: Boolean;
embeddedExtractPath: PWideChar;

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

gzip := CkGzip_Create();

// This will create a .gz such that when ungzipped by a tool such as 7-Zip,
// it will create "qa_data/hamlet.xml".
success := CkGzip_CompressFile(gzip,'qa_data/hamlet.xml','qa_output/hamlet.xml.gz');
if (success = False) then
  begin
    Memo1.Lines.Add(CkGzip__lastErrorText(gzip));
    Exit;
  end;

// Call CompressFile2 to explicitly specify the ungzip path
// For example, this will create a .gz such that when ungzipped by a tool such as 7-Zip,
// it will create "hamlet.xml".
embeddedExtractPath := 'hamlet.xml';
success := CkGzip_CompressFile2(gzip,'qa_data/hamlet.xml',embeddedExtractPath,'qa_output/hamlet2.xml.gz');
if (success = False) then
  begin
    Memo1.Lines.Add(CkGzip__lastErrorText(gzip));
    Exit;
  end;

Memo1.Lines.Add('Success.');

CkGzip_Dispose(gzip);

end;