ccy / delphi-zip

Delphi System.zip patch with ZIP64 and LZMA supports

Delphi Zip

Table of Contents

• Introduction
• Source code
  • RAD Studio 11 Alexandria
• Usage
• Example

Introduction

TZipFile class in RAD Studio does not support

• LZMA compression method

• Zip64 archive format

This library add these features to existing System.Zip.pas via new unit System.Zip2.pas. User can easily switch between System.Zip.pas and System.Zip2.pas in source code.

Source code

The repository organizes source code for various RAD Studio release using branches since RAD Studio XE4.

RAD Studio 11 Alexandria

• RAD Studio 11 Alexandria support Zip64. Zip64 artifacts has replaced by RAD Studio 11 release.

Usage

To enable Zip64 support, replace System.Zip.pas to System.Zip2.pas.

To enable LZMA compression method, Add System.Zip.LZMA to RAD Studio project.

Example

To extract LZMA zip archive:

uses System.Zip2, System.Zip.LZMA;

begin
  TZipFile.ExtractZipFile('c:\lzma.zip', 'c:\');
end.