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Fork of SevenZip++ for modern builds.
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getnamo Merge pull request #41 from kenkit/master
Tests are now visible on appveyor tests tab
Latest commit 600c0d0 May 18, 2019
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.vscode All tests are now good :) May 15, 2019
7z @ 174a5af change 7z Jun 17, 2018
7zpp-TestApp Cin was causing no exit in test May 15, 2019
7zpp Update 7zpp.h Mar 9, 2019
Include/7zpp Update 7zpp.h Mar 9, 2019
Testing/Temporary Apparantly the temporary path wasn't being seen by the testapp added … May 15, 2019
build add gitkeep Mar 12, 2019
googletest @ 8b6d3f9 Use cmake instead of vcxproj Mar 7, 2019
scripts Changed 7z.dll copy to not error if it is not present. Added a post b… Jan 7, 2016
.gitmodules Use cmake instead of vcxproj Mar 7, 2019
CMakeLists.txt Try fixing test May 18, 2019 Updated contributing doc. Jan 18, 2016
LICENSE.txt Change to AddToList paradigm Apr 21, 2018 Update May 15, 2019 update todo Apr 21, 2018
appveyor.yml Update appveyor.yml May 18, 2019

Build status


A fork of SevenZip++ for modern builds. Uses cmake to generate build files for desired Visual Studio version, see setup section for instructions.

Uses latest lzma1801 SDK


Originally from:

This is a C++ wrapper for accessing the 7-zip COM-like API in 7z.dll and 7za.dll. This code is heavily based off of the Client7z sample found in the LZMA SDK.

The project itself is a static library.

Basic Usage

To use, first load the 7z DLL into memory:

#include <7zpp/7zpp.h>

SevenZip::SevenZipLibrary lib;

If the appropriate 7z DLL is not in your path you may wish to specify it explicitly in the call to load. Note you may have the 64-bit version installed but are trying to load it from a 32-bit executable; keep that in mind if you encounter errors.


Then create and use a compressor:

SevenZip::SevenZipCompressor compressor(lib, archiveName);

Or an extractor:

SevenZip::SevenZipExtractor extractor(lib, archiveName);

// Try to detect compression type
if (!extractor.DetectCompressionFormat())


// Change this function to suit
SevenZip::ProgressCallBack *extractcallbackfunc = nullptr;


extractor.ExtractArchive(destination, extractcallbackfunc);

Or a lister:

class ListCallBackOutput : SevenZip::ListCallback
	virtual void OnFileFound(WCHAR* path, ULONGLONG size)
			<< path
			<< L" "
			<< size
			<< std::endl;


SevenZip::SevenZipLister lister(lib, archiveName);

// Try to detect compression type
if (!lister.DetectCompressionFormat())

ListCallBackOutput myListCallBack;

lister.ListArchive((SevenZip::ListCallback *)&myListCallBack);

Note: Most of the functions now return a boolean to indicate if it worked instead of throwing an exception.

Otherwise, don't forget to wrap the operations in a try/catch block to handle errors:

catch (SevenZip::SevenZipException& ex)
    std::cerr << ex.GetMessage() << std::endl;

Setup and Installation

Using git and cmake

  1. Ensure you have cmake and git installed. Navigate to folder of choice.
  2. Open a powershell window and type git clone --recursive
  3. Navigate into the newly cloned project cd 7zip-cpp
  4. (Optional for Test app only) Download and build Boost
  5. Example build with cmake using powershell
cd build
cmake -G "Visual Studio 15 2017 Win64" ../
cmake --build ../build --config Release
  1. Commands from 5 will build win64 Release target and output will be found in build/Release/7zpp.lib

How to use this library in my project

Add project into your cmakelists

add_subdirectory(${pathto7zip-cpp} ${PROJECT_SOURCE_DIR}/build/build7zpp)
target_include_directories(${my_project} INTERFACE ${pathto7zip-cpp}/Include)
target_link_libraries(${my_project} 7zpp)
add_dependencies(${my_project}  7zpp) #might not be necessary

Test Requirements

In order to compile the tests,you must have boost libraries in your path or specify the location where cmake can find them

  1. Assuming you're in the project directory
  2. Download and build Boost
cd build
cmake ../ -DBOOST_ROOT="My boost location"
  1. Then finally cmake --build ../build to build

Known Issues

Only 1 test unit is failing.




  • Devel branch is the bleeding edge, but it should still work.
  • Devel-XXX branches are current topics.
  • Master branch is the latest stable version.
  • More branch information is in
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