xtd (pronounced "extend") is a modern C++17/20 framework to create console, GUI (forms like WinForms) and unit test applications on Microsoft Windows, Apple macOS, Linux, iOS and android (*).

(*) See portability for more information.

• Release xtd 0.1.2 (beta) - Posted on March 12, 2024
• The xtd 0.2.0 (beta) is growing - Posted on November 12, 2023
• Release xtd 0.1.1 (beta) - Posted on Jully 17, 2023
• The new xtd website is online - Posted on February 9, 2023
• All news

• Free and open-source (MIT License);
• a collection of native C++ classes libraries, to extend std;
• API close to the .net API with a modern C++ approach and full integration with the std standard;
• xtd is designed to manage GUI controls and dialogs in pure native mode or with CSS styles.
• written in efficient, modern C++17/20 with RAII programming idiom;
• and highly portable and available on many different platforms;
• See features for more informations.

xtd is composed of several libraries.

The xtd.core library is modern C++17/20 libraries of classes, interfaces, and value types that provide access to system functionality. It is the foundation on which c++ applications, components, and controls are built.

The xtd.drawing library contains types that support basic GDI+ graphics functionality. Child namespaces support advanced two-dimensional and vector graphics functionality, advanced imaging functionality, and print-related and typographical services. A child namespace also contains types that extend design-time user-interface logic and drawing.

The xtd.forms library contains classes for creating Windows-based applications that take full advantage of the rich user interface features available in the Microsoft Windows, Apple macOS and linux base operating system.

The xtd.tunit library is a unit-testing framework for modern C++17/20, inspired by Microsoft.VisualStudio.TestTools.Cpp.

• Installation provides download, install and uninstall documentation.
• Guides provides xtd guides and tutorials.
• Examples provides over 800 examples to help you use xtd, grouped by libraries and topics.

• Release notes provides release notes information.
• Roadmap provides a view of the xtd roadmap.
• Kanban board provides a Kanban view for all tasks (enhancements, pull requests, bugs, questions,...).
• Development status provides information about classes and libraries development status.
• Translation status provides information about translations status.

This project is an open source project. The developers who participate do so on their own time. It is therefore difficult to fix realese dates.

But you can follow the evolution of the development. We keep the status up to date.

At each commit, a build and unit tests are performed for the following configurations :

Operating system	Debug	Release
Windows (x64)
Windows (x86)
macOS
Ubuntu
iOS (**)
Android (**)

(**) xtd.core and xtd.tunit only.

Deploy to GitHub Pages	status
Deployment of the website
Deployment of the latest reference guide

As xtd is managed by a Kanban project, the number of open issues can be quite large. The table below gives a clearer view on the number of open bugs/questions and enhancements.

Issues	Open	Closed
Bugs / Questions from users
xtd 0.1.0 - Enhancements / Developments (*)
xtd 0.1.1 - Enhancements / Developments
xtd 0.2.0 - Enhancements / Developments
xtd 0.3.0 - Enhancements / Developments
xtd 0.4.0 - Enhancements / Developments
xtd 1.0.0 - Enhancements / Developments

(*) There is only one enhancement for xtd 0.1.0, as project management was not yet available.

The classic first application 'Hello World'.

#include <xtd/xtd>

using namespace xtd;

auto main() -> int {
  console::background_color(console_color::blue);
  console::foreground_color(console_color::white);
  console::write_line("Hello, World!");
}

or simply

#include <xtd/xtd>

using namespace xtd;

auto main() -> int {
  console::out << background_color(console_color::blue) << foreground_color(console_color::white) << "Hello, World!" << environment::new_line;
}

cmake_minimum_required(VERSION 3.20)

project(hello_world_console)
find_package(xtd REQUIRED)
add_sources(hello_world_console.cpp)
target_type(CONSOLE_APPLICATION)

Open "Command Prompt" or "Terminal". Navigate to the folder that contains the project and type the following:

xtdc run

#include <xtd/xtd>

using namespace xtd::forms;

class main_form : public form {
public:
  main_form() {
    text("Hello world (message_box)");

    button1.location({10, 10});
    button1.parent(*this);
    button1.text("&Click me");
    button1.click += [] {
      message_box::show("Hello, World!");
    };
  }
  
private:
  button button1;
};

auto main() -> int {
  application::run(main_form {});
}

or simply

#include <xtd/xtd>

auto main() -> int {
  auto main_form = xtd::forms::form::create("Hello world (message_box)");
  auto button1 = xtd::forms::button::create(main_form, "&Click me", {10, 10});
  button1.click += [] {xtd::forms::message_box::show("Hello, World!");};
  xtd::forms::application::run(main_form);
}

cmake_minimum_required(VERSION 3.20)

project(hello_world_forms)
find_package(xtd REQUIRED)
add_sources(hello_world_forms.cpp)
target_type(GUI_APPLICATION)

Open "Command Prompt" or "Terminal". Navigate to the folder that contains the project and type the following:

xtdc run

#include <xtd/xtd>

using namespace xtd;
using namespace xtd::tunit;

namespace unit_tests {
  class test_class_(hello_world_test) {
    void test_method_(create_string_from_literal) {
      auto s = string {"Hello, World!"};
      valid::are_equal(13, s.size());
      assert::are_equal("Hello, World!", s);
    }
    
    void test_method_(create_string_from_chars) {
      auto s = string {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
      valid::are_equal(13, s.size());
      string_assert::starts_with("Hello,", s);
      string_assert::ends_with(" World!", s);
    }
  };
}

auto main() -> int {
  return console_unit_test().run();
}

or without helpers

#include <xtd/xtd>

using namespace xtd;
using namespace xtd::tunit;

namespace unit_tests {
  class hello_world_test;
  
  auto hello_world_test_class_attr = test_class_attribute<hello_world_test> {"unit_tests::hello_world_test"};
  class hello_world_test : public test_class {
    test_method_attribute create_string_from_literal_attr {"create_string_from_literal", *this, &hello_world_test::create_string_from_literal};
    void create_string_from_literal() {
      auto s = string {"Hello, World!"};
      valid::are_equal(13, s.size());
      assert::are_equal("Hello, World!", s);
    }
    
    test_method_attribute create_string_from_chars_attr {"create_string_from_chars", *this, &hello_world_test::create_string_from_chars};
    void create_string_from_chars() {
      auto s = string {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
      valid::are_equal(13, s.size());
      string_assert::starts_with("Hello,", s);
      string_assert::ends_with(" World!", s);
    }
  };
}

auto main() -> int {
  return console_unit_test().run();
}

cmake_minimum_required(VERSION 3.20)

project(hello_world_test)
find_package(xtd REQUIRED)
add_sources(hello_world_test.cpp)
target_type(TEST_APPLICATION)

Open "Command Prompt" or "Terminal". Navigate to the folder that contains the project and type the following:

xtdc run

minesweeper (on Windows)

game_of_life (on macOS)

xtdc-gui - Create a new project (on macOS)

calculator (on Ubuntu)

stopwatch (on Windows)

painting (on Ubuntu)

The authors file lists contributors together with contact information. If you make a contribution, please add yourself to the list.

Your contributions are welcome.

• First read Code of conduct and the design guidelines to make sure your contribution follows the rules.
• Fork the project and use a pull request for adding your contribution.
• If you face any problems feel free to open an issue at the issues tracker, If you feel like there is a missing feature, please raise a ticket on Github. Pull request are also welcome.

Your feedback is important for the evolution of the project.

The following project aims to simplify and guide the way beginners make their first contribution. If you are looking to make your first contribution, check out the project below.

First Contributions

Now you are ready to make your first contribution to xtd.

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