Delphi DLL

Add Files to a ZIP Using AddFile

See more Zip Examples

This example demonstrates how to use the AddFile method to add files from the local filesystem to a ZIP archive.

The example adds two files:

• One file with its relative directory path preserved
• One file stored using only its filename

The AddFile method adds references to local filesystem files. The files are not actually read or compressed until a Write* method is called.

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;

zip := CkZip_Create();

success := CkZip_NewZip(zip,'addFileExample.zip');
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Add a file and preserve its relative directory structure
// within the ZIP archive.
// 
// The following file:
//     c:/projects/app/docs/readme.txt
// 
// Will be stored in the ZIP as:
//     projects/app/docs/readme.txt
// 
saveExtraPath := True;
success := CkZip_AddFile(zip,'c:/projects/app/docs/readme.txt',saveExtraPath);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Add a file using only the filename in the ZIP archive.
// 
// The following file:
//     c:/temp/logo.png
// 
// Will be stored in the ZIP as:
//     logo.png
// 
saveExtraPath := False;
success := CkZip_AddFile(zip,'c:/temp/logo.png',saveExtraPath);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

// Write the ZIP archive to disk and close it.
// The source files are consumed at this time.
success := CkZip_WriteZipAndClose(zip);
if (success = False) then
  begin
    Memo1.Lines.Add(CkZip__lastErrorText(zip));
    Exit;
  end;

Memo1.Lines.Add('ZIP archive created successfully.');

CkZip_Dispose(zip);

end;