GTK is a multi-platform toolkit for creating graphical user interfaces.
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Chun-wei Fan b801125797
GDK-Win32: Fix AeroSnap indicator and positioning
Ensure that we take the DPI scaling into account so that surfaces will
be placed at their correct positions upon an AeroSnap operation on HiDPI
displays.

Also, use the X coordinate of the surface as-is during snap up so that
we do not inadvertently move the surface to the very left.  Also fix the
AeroSnap indicator drawing for snap up so that it is drawn at the
correct places.

Since we are updating these functions, make the old GdkWindow-era
variable names to match better the names we use nowadays.
2021-11-18 12:40:57 +01:00
.gitlab/issue_templates Add more directions to the issue templates 2021-01-20 14:10:17 +00:00
.gitlab-ci Bump the pango requirement to 1.49.3 2021-11-08 14:17:42 -05:00
build-aux flatpak: Add pango to manifest 2021-11-09 15:25:48 -05:00
demos Fix formatting error in demo about dialogs 2021-11-16 16:45:56 -05:00
docs Update section-text-widget.md 2021-11-17 22:48:14 +00:00
examples examples: Use textures over pixbufs 2021-09-17 04:31:46 +02:00
gdk GDK-Win32: Fix AeroSnap indicator and positioning 2021-11-18 12:40:57 +01:00
gsk g-i: add missing since annotations 2021-11-13 17:50:53 +01:00
gtk label: Don't add a pixel where none should be added 2021-11-18 07:16:09 +00:00
modules Improve a msgid 2021-10-18 08:35:54 -04:00
po Update Basque translation 2021-11-16 16:28:52 +00:00
po-properties Update Croatian translation 2021-11-12 13:06:50 +00:00
subprojects libtiff: update meson patch to install the lib 2021-09-30 15:59:17 +02:00
tests build: Fix build with sysprof-capture but without sysprof 2021-09-26 09:41:55 +02:00
testsuite Don't spam debug messages into TAP output 2021-11-16 18:45:34 -05:00
tools tools/generate-uac-manifest.py: Fix UAC manifest .rc 2021-10-13 12:21:10 +08:00
.clang-format ci: Add a style check pass 2020-02-11 14:47:22 +00:00
.editorconfig Add editorconfig file 2021-10-28 18:17:02 +01:00
.gitignore .gitignore: Ignore all subdirs in the subprojects dir 2018-10-12 14:23:53 +05:30
.gitlab-ci.yml Revert "ci: Allow macos to fail" 2021-11-01 10:33:09 -04:00
AUTHORS AUTHORS: some updates 2020-09-12 11:52:14 -04:00
CONTRIBUTING.md Update contribution guide 2020-12-05 11:34:52 -05:00
COPYING Change FSF Address 2012-02-27 17:06:11 +00:00
gtk.doap Update the gtk.doap file 2021-01-18 09:14:50 -05:00
gtk.supp Ignore pthread allocations in valgrind 2021-03-27 21:43:59 -04:00
lsan.supp asan: Ignore leaks from librsvg 2021-03-27 21:03:43 -04:00
make-pot Add bug reporting address to pot files 2020-12-08 17:51:38 -05:00
make-release.sh Actually build docs for releases 2021-03-30 11:00:54 -04:00
meson_options.txt build: Make all X11 extensions mandatory 2021-07-20 14:00:25 -04:00
meson.build build: Actually use the extra warnings 2021-11-15 14:59:18 +01:00
NEWS 4.5.0 2021-10-29 16:03:20 -04:00
NEWS.pre-1.0 Split NEWS 2018-01-10 19:06:45 -05:00
NEWS.pre-2.0 Split NEWS 2018-01-10 19:06:45 -05:00
NEWS.pre-3.0 Split NEWS 2018-01-10 19:06:45 -05:00
NEWS.pre-4.0 Split NEWS for pre-4.0 changes 2021-01-19 10:40:09 +01:00
README.md readme: Fix "Building GTK" docs link 2021-10-25 07:59:03 +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 a free and open-source software project. 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.

GTK is hosted by the GNOME project (thanks!) and used by a wide variety of applications and projects.

The official download location

The official web site

The official developers blog

Discussion forum

Nightly documentation can be found at

Nightly flatpaks of our demos can be installed from the GNOME Nightly repository:

  • flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo
  • flatpak install gnome-nightly org.gtk.Demo4
  • flatpak install gnome-nightly org.gtk.WidgetFactory4
  • flatpak install gnome-nightly org.gtk.IconBrowser4

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.

If you want to support GTK financially, please consider donating to the GNOME project, which runs the infrastructure hosting 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