Pascal (Lazarus/Delphi)

Zip One File

See more Zip Examples

Zip a single file. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Zip;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  zip: TZip;
  saveExtraPath: Boolean;

begin
  success := False;

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

  zip := TZip.Create;

  success := zip.NewZip('test.zip');
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  //  In this example, the file we wish to zip is /temp/abc123/HelloWorld123.txt

  //  Add a reference to a single file by calling AddFile
  //  Note: You may use either forward or backward slashes.
  saveExtraPath := False;
  success := zip.AddFile('/temp/abc123/HelloWorld123.txt',saveExtraPath);
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  success := zip.WriteZipAndClose();
  if (success = False) then
    begin
      WriteLn(zip.LastErrorText);
      Exit;
    end;

  //  A .zip containing "HelloWorld123.txt" with no path information has been created.
  WriteLn('Zip Created!');

  //  Perhaps you want to include a path in the .zip such that when unzipping, a sub-directory
  //  is automatically created and the file unzipped into it.  Use PathPrefix:

  //  (We'll skip checking the success/failure return value.)

  //  Set a PathPrefix to get the relative path you want:
  //  The .zip will contain this entry: "myApp/HelloWorld123.txt";
  success := zip.NewZip('test2.zip');
  zip.PathPrefix := 'myApp/';
  success := zip.AddFile('/temp/abc123/HelloWorld123.txt',saveExtraPath);
  success := zip.WriteZipAndClose();


  zip.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.