Delphi DLL

Zip One File

See more Zip Examples

Zip a single file. Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
zip: HCkZip;
saveExtraPath: Boolean;

begin
success := False;

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

zip := CkZip_Create();

success := CkZip_NewZip(zip,'test.zip');
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    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 := CkZip_AddFile(zip,'/temp/abc123/HelloWorld123.txt',saveExtraPath);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

success := CkZip_WriteZipAndClose(zip);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// A .zip containing "HelloWorld123.txt" with no path information has been created.
Memo1.Lines.Add('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 := CkZip_NewZip(zip,'test2.zip');
CkZip_putPathPrefix(zip,'myApp/');
success := CkZip_AddFile(zip,'/temp/abc123/HelloWorld123.txt',saveExtraPath);
success := CkZip_WriteZipAndClose(zip);

CkZip_Dispose(zip);

end;