GTK is a multi-platform toolkit for creating graphical user interfaces.
Go to file
Benjamin Otte 9f18c138d1 vulkan: Fix invalid read
Look at the right rect to compute circularness
2021-03-09 17:43:28 +01:00
.gitlab/issue_templates Add more directions to the issue templates 2021-01-20 14:10:17 +00:00
.gitlab-ci ci: Update the Fedora image to F33 2021-02-11 22:02:39 -05:00
build-aux Revert "flatpak: No need to build sassc anymore" 2021-03-06 16:03:41 -05:00
demos node-format: Small docs fixes 2021-03-08 17:49:21 -05:00
docs docs: Remove invalid macros 2021-03-07 18:34:53 +00:00
examples Remove a forgotten file 2021-01-31 20:26:02 -05:00
gdk broadway: Restore guint32 type for memory size 2021-02-27 23:43:12 +01:00
gsk vulkan: Fix invalid read 2021-03-09 17:43:28 +01:00
gtk Merge branch 'matthiasc/for-master' into 'master' 2021-03-09 00:12:11 +00:00
modules gtk: Move from g_memdup() to g_memdup2() 2021-02-11 14:22:22 +00:00
po Update French translation 2021-03-06 18:49:41 +00:00
po-properties Update Latvian translation 2021-03-07 15:26:30 +00:00
subprojects Revert "Fix the cairo build on OS X" 2021-01-15 09:07:02 -05:00
tests Add a test for popover positioning 2021-02-14 10:11:17 -05:00
testsuite Add some more rounded rect tests 2021-03-07 21:28:19 -05:00
tools gtk4-update-icon-cache: Avoid UAC on 32-bit Windows 2021-02-03 02:16:58 +00:00
.clang-format ci: Add a style check pass 2020-02-11 14:47:22 +00:00
.gitignore
.gitlab-ci.yml ci: Add debug spew on macos 2021-02-12 15:24:27 -05:00
AUTHORS AUTHORS: some updates 2020-09-12 11:52:14 -04:00
config.h.meson Set G_LOG_USE_STRUCTURED globally 2020-11-01 21:23:35 -05:00
CONTRIBUTING.md Update contribution guide 2020-12-05 11:34:52 -05:00
COPYING
gtk.doap Update the gtk.doap file 2021-01-18 09:14:50 -05:00
gtk.supp Better fontconfig suppression 2020-08-30 13:14:55 -04:00
lsan.supp Tweak lsan suppressions 2021-01-22 13:32:41 -05:00
make-pot Add bug reporting address to pot files 2020-12-08 17:51:38 -05:00
make-release.sh Remove a misleading comment 2021-01-12 10:50:41 -05:00
meson_options.txt demos: Add devel styling 2021-02-12 00:08:55 -05:00
meson.build meson: override gtk4 dependency 2021-03-08 21:06:33 -05:00
NEWS 4.1.1 2021-02-23 20:59:16 -05:00
NEWS.pre-1.0
NEWS.pre-2.0
NEWS.pre-3.0
NEWS.pre-4.0 Split NEWS for pre-4.0 changes 2021-01-19 10:40:09 +01:00
README.md Fix URLs for the download.gnome.org locations 2020-12-17 12:46:12 +00:00

GTK — The GTK toolkit

Build status

General information

GTK is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off projects to complete application suites.

GTK is free software and part of the GNU Project. However, the licensing terms for GTK, the GNU LGPL, allow it to be used by all developers, including those developing proprietary software, without any license fees or royalties.

The official download location

The official web site

The official developers blog

Discussion forum

Nightly documentation can be found at

Building and installing

In order to build GTK you will need:

You will also need various dependencies, based on the platform you are building for:

If you are building the X11 backend, you will also need:

  • Xlib, and the following X extensions:
    • xrandr
    • xrender
    • xi
    • xext
    • xfixes
    • xcursor
    • xdamage
    • xcomposite

If you are building the Wayland backend, you will also need:

  • Wayland-client
  • Wayland-protocols
  • Wayland-cursor
  • Wayland-EGL

Once you have all the necessary dependencies, you can build GTK by using Meson:

$ meson _build .
$ cd _build
$ ninja

You can run the test suite using:

$ meson test

And, finally, you can install GTK using:

$ sudo ninja install

Complete information about installing GTK and related libraries can be found in the file:

docs/reference/gtk/html/gtk-building.html

Or online

How to report bugs

Bugs should be reported on the issues page.

In the bug report please include:

  • Information about your system. For instance:

    • which version of GTK you are using
    • what operating system and version
    • for Linux, which distribution
    • if you built GTK, the list of options used to configure the build

    And anything else you think is relevant.

  • How to reproduce the bug.

    If you can reproduce it with one of the demo applications that are built in the demos/ subdirectory, on one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.

  • If the bug was a crash, the exact text that was printed out when the crash occurred.

  • Further information such as stack traces may be useful, but is not necessary.

Contributing to GTK

Please, follow the contribution guide to know how to start contributing to GTK.

Release notes

The release notes for GTK are part of the migration guide in the API reference. See:

Licensing terms

GTK is released under the terms of the GNU Lesser General Public License, version 2.1 or, at your option, any later version, as published by the Free Software Foundation.

Please, see the COPYING file for further information.

GTK includes a small number of source files under the Apache license:

  • A fork of the roaring bitmaps implementation in gtk/roaring
  • An adaptation of timsort from python in gtk/timsort