Misplaced Pages

GTK

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
(Redirected from Gtk) Free and open-source cross-platform widget toolkit for creating graphical user interfaces For other uses, see GTK (disambiguation).

GTK version 4 (gtk4-widget-factory, a collection of examples that demonstrate many of the GUI widgets)
Original author(s)Spencer Kimball, Peter Mattis
Developer(s)The GNOME Project, eXperimental Computing Facility (XCF)
Initial releaseApril 14, 1998; 26 years ago (1998-04-14)
Stable release4.14.4 / April 2, 2024; 8 months ago (2024-04-02)
Preview release4.15.1 / May 21, 2024; 7 months ago (2024-05-21)
Repository
Written inC, CSS
Operating systemLinux, Unix-like, macOS, Windows
TypeWidget toolkit
LicenseLGPLv2.1+
Websitegtk.org

GTK (formerly GIMP ToolKit and GTK+) is a free software cross-platform widget toolkit for creating graphical user interfaces (GUIs). It is licensed under the terms of the GNU Lesser General Public License, allowing both free and proprietary software to use it. It is one of the most popular toolkits for the Wayland and X11 windowing systems.

The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are maintained, while GTK 2 is end-of-life. GTK1 is independently maintained by the CinePaint project.

Software architecture

The GTK toolkit
Simplified software architecture of GTK. Pango, GDK, ATK, GIO, Cairo and GLib
GDK contains back-ends to X11, Wayland, Broadway (HTTP), Quartz, and GDI and relies on Cairo for the rendering. Its new SceneGraph is work-in-progress.
This section needs to be updated. Please help update this article to reflect recent events or newly available information. (May 2024)

The GTK library contains a set of graphical control elements (widgets); version 3.22.16 contains 186 active and 36 deprecated widgets. GTK is an object-oriented widget toolkit written in the programming language C; it uses GObject, that is the GLib object system, for the object orientation. While GTK is mainly for windowing systems based on X11 and Wayland, it works on other platforms, including Microsoft Windows (interfaced with the Windows API), and macOS (interfaced with Quartz). There is also an HTML5 back-end named Broadway.

GTK can be configured to change the look of the widgets drawn; this is done using different display engines. Several display engines exist which try to emulate the look of the native widgets on the platform in use.

Starting with version 2.8, released in 2005, GTK began the transition to using Cairo to render most of its graphical control elements widgets. Since GTK version 3.0, all rendering is done using Cairo.

On January 26, 2018 at DevConf.cz, Matthias Clasen gave an overview of the current state of GTK 4 development, including a high-level explanation of how rendering and input worked in GTK 3, what changes are being made in GTK 4 (>3.90), and why. On February 6, 2019 it was announced that GTK 4 will drop the “+” from the project's name.

GTK Drawing Kit (GDK)

Main article: GDK

GDK acts as a wrapper around the low-level functions provided by the underlying windowing and graphics systems.

GTK Scene Graph Kit (GSK)

Main article: GTK Scene Graph Kit

GSK is the rendering and scene graph API for GTK. GSK lies between the graphical control elements (widgets) and the rendering. GSK was finally merged into GTK version 3.90 released March 2017.

GtkBuilder

GtkBuilder allows user interfaces to be designed without writing code. The interface is described in an Extensible Markup Language (XML) file which is written by hand or generated by a GUI designer, which is then loaded at runtime and the objects created automatically. The description of the user interface is independent from the programming language being used.

Language bindings

Main article: List of language bindings for GTK

Language bindings are available for using GTK from languages other than C, including C++, Genie, JavaScript, Perl, Python, Vala, and others.

Backends

GTK supports various backends, which provides different ways to display GTK applications depending on the system and environment. Examples of GTK backends are:

  • Wayland – Used with the Wayland display server on Linux systems, it is a modern replacement for X11.
  • X11 – The default on Linux systems using the X.Org display server.
  • Win32 – For running GTK applications on Windows.
  • Quartz – For macOS support.
  • Broadway – Allows GTK applications to run in web browsers using HTML5 and WebSockets.

Development tools

GUI designers

A screenshot of Cambalache Interface Designer

There are several GUI designers for GTK. Here is a selection of GTK GUI designers:

  • Cambalache - a successor to Glade, supports GTK 4.
  • Glade - supports GtkBuilder, which is a GTK built-in GUI description format. (not actively maintained)
  • Gazpacho - GUI builder for the GTK toolkit written in Python
  • Crow Designer - relies on its own GuiXml format and GuiLoader library.
  • Stetic - part of MonoDevelop, oriented toward Gtk#.
  • Gambas (since version 2.0 atop BASIC)
  • Xojo
  • Lazarus (on Linux defaults to interfacing with GTK 2)

GTK Inspector

A screenshot of the GTK Inspector

The GTK Inspector is a built-in interactive debugging tool in GTK, allowing developers to inspect and modify UI elements, test CSS changes, and analyze widget structure in real time. It can be enabled using the Control + Shift + I or Control + Shift + D shortcuts, or by setting the GTK_DEBUG=interactive environment variable. It was introduced with GTK version 3.14.

Features

  • Interactive debugging
  • Real-time CSS testing and modifications
  • Widget magnification for detailed inspection
  • UI structure analysis and object property examination
  • Customizable display settings via environment variables
  • Detailed object inspection (type, state, properties, CSS, actions, etc.)
  • Global application information display
  • CSS rule debugging
  • Rendering pipeline recording and inspection

Development

GTK is mainly developed by The GNOME Project, which also develops the GNOME Development Platform and the GNOME Desktop Environment. GTK is mainly written in C. Many language bindings are available. GTK development is loosely managed.

GNOME developers and users gather at an annual GNOME Users And Developers European Conference GUADEC meeting to discuss GNOME's current state and future direction. GNOME incorporates standards and programs from freedesktop.org to better interoperate with other desktops.

On September 1, 2016, a post on the GTK development blog denoted, among other things, the future numbering scheme of GTK. GTK version 3.22, released in Autumn 2016, was planned to be the last 3.x release, although version 3.24 followed in Fall 2018 with the delay of GTK 4. The development of GTK 4 used version names 3.90, 3.92, etc. until the first GTK 4.0 stable release was launched in December 2020. Despite the first stable GTK 4 release, some applications using GTK still rely on GTK 2. For example, as of January 2022, GIMP is still being ported to GTK 3.

Build automation

The master branch of GTK utilizes Meson for its build automation. GTK (and GNOME, GLib, etc.) formerly utilized the GNU Build System (named Autotools) as the build automation system of choice. Since August 14, 2017, the Autotools build system files have been dropped.

Criticism

The most common criticism of GTK is the lack of backward-compatibility in major updates, most notably in the application programming interface (API) and theming. The result is that application developers or theme developers have to rewrite parts of their code to make it work with a newer version of GTK.

The compatibility breaks between minor releases during the GTK 3.x development cycle was explained by Benjamin Otte as due to strong pressures to innovate, such as providing the features modern users expect and supporting the increasingly influential Wayland display server protocol. With the release of GTK 4, the pressure from the need to innovate will have been released and the balance between stability and innovation will tip toward stability. Similarly, recent changes to theming are specifically intended to improve and stabilise that part of the API, meaning some investment now should be rewarded later.

  • Aurélien Gâteau started Gwenview as GTK application but switch to qt early in development.
  • Dirk Hohndel, codeveloper of Subsurface and member of Intel's Open-Source Technology Center, criticized the GTK developers for being abrasive and ignoring most community requests.
  • Hong Jen Yee, developer of LXDE (the GTK version of which was dropped and all efforts focused on the Qt port), expressed disdain for version 3 of the GTK toolkit's radical API changes and increased memory usage, and ported PCMan File Manager (PCManFM) to Qt. PCManFM is being developed with a GTK and with a Qt backend at the same time.
  • The Audacious music player moved to Qt in version 3.6. The reasons stated by the developers for this include a transition to client-side window decorations, which they claim cause the application to look "GNOME-y and out of place."
  • Wireshark has switched to Qt due to not having a good experience with GTK's cross-platform support.

Use

GTK's support for Wayland requires applications to be adapted to Wayland as well.
Screenshot of GIMP 2.8 - GTK is responsible for managing the interface components of the program, including the menus, buttons, and input fields.

Applications

Main pages: List of GTK applications and Category:Software that uses GTK

Some notable applications that use GTK as a widget toolkit include:

GTK programs can be run on desktop environments based on X11 and Wayland, or others including ones not made with GTK, provided the needed libraries are installed; this includes macOS if X11.app is installed. GTK can be also run on Microsoft Windows. It is used by some popular cross-platform applications like Pidgin and GIMP. wxWidgets, a cross-platform GUI toolkit, uses GTK on Linux by default. Other ports include DirectFB (for example used by the Debian installer).

Desktop environments

Main page: Desktop environments based on GTK

Several desktop environments utilize GTK as the widget toolkit.

Current

Inactive

Window managers

The following window managers use GTK:

GtkSourceView

For syntax highlighting there is GtkSourceView, "source code editing widget". GtkSourceView is maintained by GNOME separately from GTK as a library: gtksourceview. There are plans to rename to gsv.

GtkSpell

GtkSpell is a library separate from GTK. GtkSpell depends on GTK and Enchant. Enchant is a wrapper for ispell, hunspell, etc., the actual spell checker engine/software. GtkSpell uses GTK's GtkTextView widget, to highlight misspelled words and offer replacement.

History

GTK was originally designed and used in the GNU Image Manipulation Program (GIMP) as a replacement of the Motif toolkit; at some point Peter Mattis became disenchanted with Motif and began to write his own GUI toolkit named the GIMP toolkit and had successfully replaced Motif by the 0.60 release of GIMP. Finally GTK was re-written to be object-oriented and was renamed GTK+. This was first used in the 0.99 release of GIMP. GTK was subsequently adopted for maintenance by the GNOME Foundation, which uses it in the GNOME desktop environment.

GTK 2

The GTK 2.0.0 release series introduced new features which include improved text rendering using Pango, a new theme engine, improved accessibility using the Accessibility Toolkit, transition to Unicode using UTF-8 strings, and a more flexible API. Starting with version 2.8, GTK 2 depends on the Cairo graphics library for rendering vector graphics.

GTK 3

GTK version 3.0.0 included revised input device handling, support for themes written with CSS-like syntax, and the ability to receive information about other opened GTK applications.

The '+' was dropped returning to simply 'GTK' in February 2019 during a Hackathon.

OpenVMS

HP stated that their goal was to merge the needed OpenVMS changes into the GTK Version 1.3 development stream, however this never materialised. The latest version of GTK for OpenVMS is version 1.2.10.

GTK 4

One of the main changes made during the GTK 4 development cycle (i.e. GTK 3.92, etc.) was the removal of user customization options (like individual keyboard shortcuts that could be set in GTK+ 2), and the delegation of functionality to ancillary objects instead of encoding it into the base classes provided by GTK. Other changes include:

  • Event handling from signal handlers described by GtkWidget is delegated to event controllers.
  • Rendering is delegated to GtkSnapshot objects.
  • The layout mechanism is delegated from GtkWidget to GtkLayoutManager.

At the 2018 edition of DevConf.cz, Matthias Clasen gave an overview of the then-current state of GTK 4 development, including a high-level explanation of how rendering and input worked in GTK 3, what changes were being made to GTK 4, and the reasons for those changes. Examples of things that have become possible with GTK 4 were given as well.

Releases

Legend:Old version, not maintainedOld version, still maintainedLatest versionLatest preview versionFuture release
Release series Initial release Major enhancements Latest minor version
Old version, no longer maintained: 1.0 1998-04-13 First stable version 1.0.
Old version, no longer maintained: 1.2 1999-02-25 New widgets:
  • GtkFontSelector
  • GtkPacker
  • GtkItemFactory
  • GtkCTree
  • GtkInvisible
  • GtkCalendar
  • GtkLayout
  • GtkPlug
  • GtkSocket
 1.2.10
Old version, no longer maintained: 2.0 2002-03-11 GObject

Overall support for UTF-8

2.0.9
Old version, no longer maintained: 2.2 2002-12-22 Multihead support 2.2.4
Old version, no longer maintained: 2.4 2004-03-16 New widgets:
  • GtkFileChooser
  • GtkComboBox
  • GtkComboBoxEntry
  • GtkExpander
  • GtkFontButton
  • GtkColorButton
 2.4.14
Old version, no longer maintained: 2.6 2004-12-16 New widgets:
  • GtkIconView
  • GtkAboutDialog
  • GtkCellView

The last to support Windows 98/Me

2.6.10
Old version, no longer maintained: 2.8 2005-08-13 Most widgets are rendered by Cairo 2.8.20
Old version, no longer maintained: 2.10 2006-07-03 New widgets:
  • GtkStatusIcon
  • GtkAssistant
  • GtkLinkButton
  • GtkRecentChooser

Print support: GtkPrintOperation

2.10.14
Old version, no longer maintained: 2.12 2007-09-14 GtkBuilder 2.12.12
Old version, no longer maintained: 2.14 2008-09-04 JPEG 2000 load support 2.14.7
Old version, no longer maintained: 2.16 2009-03-13 New widget: GtkOrientable

Caps Lock warning in password entry

Improvements on GtkScale, GtkStatusIcon, GtkFileChooser

2.16.6
Old version, no longer maintained: 2.18 2009-09-23 New widget: GtkInfoBar

Improvement on file chooser, printing

To remove much of the necessary IPC between the X11 application and the X11 server, GDK is rewritten (mainly by Alexander Larsson) to use "client-side windows", i.e., the GdkWindow, which every widget must have, belongs now to the client

2.18.9
Old version, no longer maintained: 2.20 2010-03-23 New widgets:
  • GtkSpinner
  • GtkToolPalette
  • GtkOffscreenWindow

Improvement on file chooser, keyboard handling, GDK

Introspection data is now included in GTK

2.20.1
Old version, no longer maintained: 2.22 2010-09-23 GdkPixbuf moved to separate module

Most GDK drawing are based on Cairo

Many internal data are now private and can be sealed in preparation to GTK 3

2.22.1
Old version, no longer maintained: 2.24 2011-01-30 New widget: GtkComboBoxText which had previously been a custom widget shipped with Gtkmm

The CUPS print backend can send print jobs as PDF

GtkBuilder has gained support for text tags and menu toolbuttons and many introspection annotation fixes were added

Migrating from GTK+ 2.x to GTK+ 3

2.24.33
(2020-12-21)
Old version, no longer maintained: 3.0 2011-02-10 Development and design of the GTK 3 release of the toolkit started in February 2009 during the GTK Theming Hackfest held in Dublin
  • The first draft of the development roadmap was released on April 9, 2009

Completed mostly Project Ridley

  • the attempt to consolidate several libraries that were external to GTK+
  • including libgnome, libgnomeui, libgnomeprint22, libgnomeprintui22, libglade, libgnomecanvas, libegg, libeel, gtkglext, and libsexy

All the rendering is done using Cairo

GDK became more X11 agnostic

XInput2, theme API is based on Cascading Style Sheets (CSS), worsening the achievable performance for 60 Hz frame rates

3.0.12
Old version, no longer maintained: 3.2 2011-09-25 New widgets:
  • GtkLockButton
  • GtkOverlay

New Font Chooser dialog

New experimental backends:

3.2.4
Old version, no longer maintained: 3.4 2012-03-26 Menu support in GtkApplication

A new color chooser

Added support for touch devices

Added support for smooth scrolling

GtkScrolledWindow will do kinetic scrolling with touch devices

macOS support is improved

This is the first version of GTK 3 that works well on Windows

The Wayland backend is updated to the current Wayland version

Spin buttons have received a new look

Accessibility: the treeview accessible support is rewritten

More complete CSS theming support

3.4.4
Old version, no longer maintained: 3.6 2012-09-24 New widgets:
  • GtkSearchEntry
  • GtkMenuButton
  • GtkLevelBar

Vertical spin buttons

CSS animations, blur shadows

Support for cross-fading and transitions in themes

3.6.5
Old version, no longer maintained: 3.8 2013-03-25 Wayland 1.0 stable support

Support for the broadwayd server

Improved theming

Better geometry management

Touch improvements

Support with the window manager for the frame synchronization protocol

GdkFrameClock added

3.8.9
Old version, no longer maintained: 3.10 2013-09-23 New widgets:
  • GtkHeaderBar
  • GtkPlacesSidebar
  • GtkStack
  • GtkStackSwitcher
  • GtkRevealer
  • GtkSearchBar
  • GtkListBox

Support for Wayland 1.2

  • maximization
  • animated cursors
  • multiple monitors
  • settings
  • custom surfaces
  • frame synchronization

Added:

  • client-side decorations
  • scaled output support on high-dpi screens
  • fine-adjustment mode for scrolling

Removed:

  • support for the Motif DND protocol
  • support for multiple screens per display
  • gdk_window_get_display
  • gtk_widget_push_composite_child

Tear-off menu-items, plus many GTK settings

The modern GTK drawing model

3.10.9
Old version, no longer maintained: 3.12 2014-03-25 Client-side decorations

Support for Wayland 1.5

New widget: GtkPopover (an alternative to menus and dialogs)

3.12.2
Old version, no longer maintained: 3.14 2014-09-22 GtkInspector (a copy of gtkparasite) introduced

Improved support for gestures/multi-touch merged

Deprecated:

  • GtkMisc
  • GtkAlignment
  • GtkArrow
  • GdkColor
  • Style regions
  • support for .icon files
  • gdk_window_flush
  • drawing outside of begin/end paint

Most widgets converted to use gestures internally

Wayland supports GNOME Shell classic mode

3.14.15
Old version, no longer maintained: 3.16 2015-03-22 GDK supports rendering windows using OpenGL for X11 and Wayland using libepoxy

New widgets:

  • GtkGLArea
  • GtkStackSidebar
  • GtkModelButton
  • GtkPopoverMenu

Scrolling overhauled (scrollbar hidden by default)

Experimental Mir backend

3.16.7
Old version, no longer maintained: 3.18 2015-09-23 Add CSS node infrastructure

More filechooser design refresh and better filechooser search

Dropped Windows XP support

Model support for list and flow box

Kinetic touchpad scrolling

Touchpad gestures (Wayland)

gtk-builder-tool utility

Output-only windows

3.18.9
Old version, no longer maintained: 3.20 2016-03-21 Further Integration of CSS nodes

Move drag and drop down to GDK

New widget: GtkShortcutsWindow (shows keyboard shortcuts and gestures of an application)

3.20.10
Old version, no longer maintained: 3.22 2016-09-21 Last 3.x release

Wayland tablet support is merged, support for graphics tablets is considered feature complete

GTK 3.22 shall be as rock-stable (and hence "boring") as GTK 2

for 3+ years
3.22.29
Old version, yet still maintained: 3.24 2018-09-03 3.22 was supposed to be the last version of GTK 3 series
  • 3.24 was mainly released to ease migrating from GTK+ 3.x to GTK+ 4

Dependency bumps – require:

  • libepoxy 1.4
  • pango 1.41

New font chooser features:

  • allow setting OpenType font features
  • show examples for OpenType font features
  • allow selecting OpenType font variations
  • support levels of details for selection

New Emoji features:

  • support a completion popup for Emoji
  • drop Ctrl-Shift-e shortcut

Other new APIs: gdk_window_move_to_rect

Wayland: use anonymous shared memory on FreeBSD

Backported event controllers from GTK 4:

  • GtkEventControllerScroll
  • GtkEventControllerMotion
  • GtkEventControllerKey
  • GtkGestureStylus

Deprecate a few APIs that are gone in GTK 4:

  • focus chains in GtkContainer
  • stepper sensitivity in GtkRange
 3.23.0
3.23.1
3.23.2
3.23.3
3.24.0
...3.24.5
3.24.14
...

3.24.29

Old version, no longer maintained: 3.90 2017-03-31 GTK Scene Graph Kit (GSK) merged

Remove any API marked as deprecated

Heavy development

  • break API & ABI

A new Vulkan-renderer augments the old Cairo-renderer

3.89.1

3.89.2
3.89.4
3.89.5
3.90

Old version, no longer maintained: 3.92 2017-10-18 As GNOME 3.26 was released already on September 13, 2017, it was not based on GTK 3.92.

GNU autotools was replaced with Meson.

3.91.0

3.91.1
3.91.2
3.92.1

Old version, no longer maintained: 3.94 2018-06-26 3.93
  • GdkScreen, GdkVisual removed
  • GdkDeviceManager replaced by GdkSeat
  • Clipboard handling is moved from GTK to GDK
  • GdkEvent is converted to an opaque GObject
  • the GL renderer in GSK is substantially completed, and is now on par with the Vulkan renderer
  • the use of GdkPixbuf in APIs is reduced
    • and the GskTexture object is moved to GDK as GdkTexture, to take its place
  • the Wayland backend now implements the KDE server-side decoration protocol
  • Broadway is ported to GSK.

GdkWindow renamed to GdkSurface

New abstraction for drawable content: GdkPaintable

There is support for displaying media with:

  • GtkVideo
  • GtkMediaFile
  • GtkMediaStream
  • GtkMediaControls
 3.93
3.94.0
Old version, no longer maintained: 3.96 2019-05-07 The gtk4-builder-tool simplify command has gained a --3to4 option to convert GTK3 ui files to GTK4; though with AMTK menus, toolbars or other objects like GtkShortcutsWindow are created programmatically (not with a *.ui file), but with convenient APIs.

GtkWidget can now use a GtkLayoutManager for size allocation

  • layout managers can optionally use layout children holding layout properties
  • GtkBinLayout, GtkBoxLayout, GtkGridLayout, GtkFixedLayout and GtkCustomLayout are currently available
  • more layout manager implementations will appear in the future

Focus handling has been rewritten, and focus-change event generation has been unified with crossing events

Events have been simplified and are just used for input:

  • expose events have been replaced by a GdkSurface::render signal
  • configure events have been replaced by a GdkSurface::size-changed signal
  • map events have been replaced by a GdkSurface::mapped property
  • gdk_event_handler_set has been replaced by a GdkSurface::event signal
  • key events no longer contain a string
  • events on unmapped widgets are ignored
 3.96.0
Old version, no longer maintained: 3.98 2020-02-10
  • Performance improvements
  • Drag and drop refactoring
  • Moving GDK towards Wayland
  • Removals
    • GtkMenu, GtkToolbar and similar classes have been replaced by GMenu.
  • Additions
    • Emoji chooser
    • Text widgets now have undo stacks
    • A new layout manager
 3.98.5
Old version, no longer maintained: 3.99.0 2020-07-31
  • Introduced successor to Accessibility Toolkit (ATK). The new approach will implement WAI-ARIA (World Wide Web Consortium (W3C) Accessibility Initiative – Accessible Rich Internet Applications).
  • Updated headers to use standard C types instead of GLib types
  • New widgets
  • Fixes and improvements
 3.99.4
Old version, no longer maintained: 4.0 2020-12-16 4.0.2
Old version, no longer maintained: 4.2 2021-03-30
Old version, no longer maintained: 4.4 2021-08-23
Old version, no longer maintained: 4.6 2021-12-30
Old version, no longer maintained: 4.8 2022-09-06
Current stable version: 4.10 2023-03-04 GtkFileChooser deprecated (use GtkFileDialog)

See also

References

  1. "The GTK Open Source Project on Open Hub: Languages Page". www.openhub.net. Archived from the original on March 28, 2019. Retrieved March 28, 2019.
  2. "A brief description on how GTK was born". www.gtk.org. Archived from the original on June 9, 2023. Retrieved July 5, 2023.
  3. ^ Bassi, Emmanuele (February 6, 2019). "Project rename to "GTK"". mail.gnome.org. GNOME mailinglist. Archived from the original on November 7, 2020. Retrieved February 7, 2019.
  4. The GTK+ Team. "GTK+ Features". Archived from the original on May 25, 2019. Retrieved September 8, 2014.
  5. "Documentation". www.x.org. Archived from the original on December 21, 2019. Retrieved November 22, 2019.
  6. ^ "Projects/GTK/Roadmap - GNOME Wiki!". wiki.gnome.org. Archived from the original on May 22, 2019. Retrieved November 22, 2019.
  7. "GTK 4.0 – GTK Development Blog". December 16, 2020. Archived from the original on May 28, 2023. Retrieved October 18, 2021.
  8. "Robin Rowe / GTK1 · GitLab". GitLab. Archived from the original on March 9, 2023. Retrieved February 22, 2023.
  9. "GTK+ 3 Reference Manual". Archived from the original on June 23, 2021. Retrieved July 15, 2017.
  10. ^ "Using GTK+ with Broadway". GNOME Developer. GNOME. Archived from the original on June 14, 2021. Retrieved March 6, 2018.
  11. ^ "Broadway - GitHub symbiose/symbiose Wiki". GitHub. Archived from the original on June 28, 2023. Retrieved March 6, 2018.
  12. "GTK+ to Use Cairo Vector Engine". February 5, 2005. Retrieved December 27, 2009.
  13. "Gtk: Migrating from GTK 2.x to GTK 3". docs.gtk.org. Archived from the original on May 26, 2023. Retrieved June 16, 2022. All drawing in GTK 3 is done via Cairo.
  14. "Matthias Clasen DevConf.cz 2018 talk about GTK+ 4" (PDF). January 26, 2018. Archived (PDF) from the original on April 22, 2024. Retrieved March 9, 2018.
  15. The GTK+ Team. "GTK+ Language Bindings". www.gtk.org. Archived from the original on May 25, 2019. Retrieved June 3, 2017.
  16. GUADEC. "Cambalache: road to version 1.0".
  17. "glade - man pages section 1: User Commands". docs.oracle.com. Retrieved September 11, 2024.
  18. "Debian -- Package Search Results -- gazpacho". packages.debian.org. Archived from the original on June 28, 2023. Retrieved November 22, 2019.
  19. "Nothing-personal - A development site for Crow Designer, GuiLoader and Rally - Google Project Hosting". Archived from the original on January 24, 2013. Retrieved February 17, 2014.
  20. "GTK Inspector". GNOME Developer Documentation. Retrieved September 14, 2024.
  21. "Introducing GtkInspector". May 15, 2014. Archived from the original on May 17, 2014. Retrieved May 17, 2014.
  22. "Another GtkInspector update". July 11, 2014. Archived from the original on July 14, 2014. Retrieved July 13, 2014.
  23. "GNOME Quick SWOT Analysis". The GNOME Project. Archived from the original on March 18, 2014. Retrieved March 18, 2014.
  24. "GNOME Languages". Ohloh. Black Duck Software. Archived from the original on May 22, 2014. Retrieved May 22, 2014.
  25. "About". GNOME Users And Developers European Conference (GUADEC). Archived from the original on October 4, 2011. Retrieved December 3, 2011.
  26. ^ "Versioning and long term stability promise in GTK". GTK development blog. September 1, 2016. Archived from the original on September 21, 2016. Retrieved September 2, 2016.
  27. "GTK+ 3.24 To Deliver Some New Features While Waiting For GTK4". www.phoronix.com. Archived from the original on April 22, 2024. Retrieved April 2, 2021.
  28. "GTK 4.0". GTK development blog. December 16, 2020. Archived from the original on May 28, 2023. Retrieved October 18, 2021.
  29. "Development release GIMP 2.99.2 is out". Gimp news. November 6, 2020. Archived from the original on April 10, 2021. Retrieved January 6, 2022.
  30. "Build system change GTK's master branch". mail.gnome.org. Archived from the original on August 15, 2017. Retrieved October 29, 2018.
  31. "How Does One Create A Gtk+ Application? – Morten Welinder". blogs.gnome.org. June 23, 2014. Archived from the original on July 1, 2014. Retrieved June 3, 2017.
  32. mclasen (November 20, 2015). "A GTK+ update". Goings on. Archived from the original on May 2, 2016. Retrieved June 3, 2016.
  33. ^ "GUADEC2013: Benjamin Otte talks about GTK+". GUADEC. Archived from the original on March 6, 2014. Retrieved March 5, 2014.
  34. Aurélien Gâteau (October 3, 2021). "The story behind Gwenview name". agateau.com. Archived from the original on April 22, 2024. Retrieved December 15, 2024. Yes, you read this right! Gwenview started its life as a GTK+ application!
  35. Larabel, Michael (January 12, 2014). "The Biggest Problem With GTK & What Qt Does Good". Phoronix. Archived from the original on July 1, 2016. Retrieved September 10, 2014.
  36. Hong Jen Yee (March 26, 2013). "PCManFM Qt 0.1.0 released". Archived from the original on June 7, 2013. Retrieved September 10, 2014.
  37. "Audacious - An Advanced Audio Player". audacious-media-player.org. Archived from the original on July 28, 2019. Retrieved November 22, 2019.
  38. Lindgren, John (May 6, 2014). "Ugly window decorations and how to fix them (GTK 3.12)". Archived from the original on October 13, 2014. Retrieved October 21, 2014.
  39. Gerald Combs (October 15, 2013). "We're switching to Qt". Archived from the original on October 19, 2013. Retrieved August 19, 2015.
  40. "GTK+". WxWidgets Compared To Other Toolkits. Archived from the original on October 5, 2007. Retrieved August 28, 2007.
  41. "LinuxWorld - Where did Spencer Kimball and Peter Mattis go?". Archived from the original on April 17, 1999. Retrieved August 19, 2013.
  42. "What is the + in GTK+?". 2011. Archived from the original on March 26, 2012. Retrieved March 18, 2014.
  43. "Rename some references to GTK+ (d080be3e) · Commits · GNOME / gtk". gitlab.gnome.org. February 4, 2019. Archived from the original on February 25, 2021. Retrieved February 5, 2019.
  44. "HP OpenVMS systems - GTK+". Archived from the original on July 13, 2018. Retrieved July 12, 2018.
  45. "HP OpenVMS systems - GTK+". Archived from the original on July 13, 2018. Retrieved July 12, 2018.
  46. Clasen, Matthias. "GTK+ 4 Status Update" (PDF). Fedora People. Archived (PDF) from the original on April 22, 2024. Retrieved April 22, 2024.
  47. Amundson, Shawn T. (April 13, 1998). "ANNOUNCE: GTK+ 1.0.0 Released!". GNOME Mail Services (Mailing list). Archived from the original on March 12, 2019. Retrieved May 20, 2019.
  48. Amundson, Shawn T. (February 25, 1999). "ANNOUNCE: GTK+ and GLib 1.2.0 Released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  49. Taylor, Owen (March 11, 2002). "GTK+-2.0.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  50. Taylor, Owen (December 22, 2002). "GTK+-2.2.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  51. Taylor, Owen (March 16, 2004). "GTK+-2.4.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  52. Clasen, Matthias (December 16, 2004). "GTK+-2.6.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  53. Clasen, Matthias (August 13, 2005). "GTK+ 2.8.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  54. Clasen, Matthias (July 3, 2006). "GTK+ 2.10 released". GNOME Mail Services (Mailing list). Archived from the original on January 22, 2021. Retrieved May 20, 2019.
  55. Clasen, Matthias (September 14, 2007). "GTK+ 2.12 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  56. Clasen, Matthias (September 4, 2008). "GTK+ 2.14.0 released". GNOME Mail Services (Mailing list). Archived from the original on August 10, 2020. Retrieved May 20, 2019.
  57. Clasen, Matthias (March 13, 2009). "GTK+ 2.16.0 released". GNOME Mail Services (Mailing list). Archived from the original on June 3, 2019. Retrieved May 20, 2019.
  58. Clasen, Matthias (September 23, 2009). "GTK+ 2.18.0 released". GNOME Mail Services (Mailing list). Archived from the original on June 3, 2019. Retrieved May 20, 2019.
  59. Clasen, Matthias (March 23, 2010). "GTK+ 2.20.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  60. Clasen, Matthias (September 23, 2010). "GTK+ 2.22.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  61. Clasen, Matthias (January 20, 2011). "GTK+ 2.24.0". GNOME Mail Services (Mailing list). Archived from the original on May 8, 2019. Retrieved May 20, 2019.
  62. "Tags · GNOME / gtk · GitLab". GitLab. December 21, 2020. Archived from the original on December 4, 2023. Retrieved October 18, 2023.
  63. Clasen, Matthias (February 10, 2011). "GTK+ 3.0.0 released". GNOME Mail Services (Mailing list). Archived from the original on March 12, 2019. Retrieved May 20, 2019.
  64. "Gtk+ 3.0 Theming API Hackfest". Silicon Island. Archived from the original on July 17, 2011. Retrieved June 3, 2017.
  65. "Gtk+ 3 roadmap draft". Archived from the original on April 12, 2009. Retrieved June 3, 2017.
  66. "Attic/ProjectRidley - GNOME Wiki!". wiki.gnome.org. Archived from the original on March 4, 2016. Retrieved March 29, 2014.
  67. Clasen, Matthias (September 25, 2011). "GTK+ 3.2.0". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  68. Clasen, Matthias (March 26, 2012). "GTK+ 3.4.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  69. Clasen, Matthias (September 24, 2012). "GTK+ 3.6.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  70. Clasen, Matthias (March 25, 2013). "GTK+ 3.8.0 released". GNOME Mail Services (Mailing list). Archived from the original on March 3, 2016. Retrieved May 20, 2019.
  71. "Frame clock: GDK 3 Reference Manual". developer.gnome.org. Archived from the original on April 14, 2017. Retrieved April 13, 2017.
  72. Clasen, Matthias (September 23, 2013). "GTK+ 3.10.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  73. Clasen, Matthias (March 25, 2014). "GTK+ 3.12 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  74. "Client-side decorations in themes | Goings on". December 5, 2013. Archived from the original on September 19, 2015. Retrieved December 31, 2015.
  75. Clasen, Matthias (September 22, 2014). "GTK+ 3.14.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  76. Matthias Clasen (May 15, 2014). "GtkInspector Author's blog entry". Archived from the original on May 17, 2014. Retrieved May 17, 2014.
  77. "GtkInspector in GNOME wiki". May 15, 2014. Archived from the original on May 24, 2014. Retrieved May 17, 2014.
  78. "Merging gestures into 3.14". May 23, 2014. Archived from the original on September 14, 2016. Retrieved May 23, 2014.
  79. "RFC: gestures". March 4, 2014. Archived from the original on May 24, 2014. Retrieved May 23, 2014.
  80. "gtk+ 3.13.2". May 27, 2014. Archived from the original on May 29, 2014. Retrieved May 28, 2014.
  81. "gtk+ 3.13.3". June 24, 2014. Archived from the original on December 15, 2014. Retrieved June 25, 2014.
  82. Clasen, Matthias (March 22, 2015). "GTK+ 3.16.0 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  83. online, heise (March 25, 2015). "Linux-Desktop: Neues Gnome zeigt Nachrichten oben". heise online. Archived from the original on June 25, 2016. Retrieved June 3, 2017.
  84. "GTK+ 3.16.0 released". mail.gnome.org. Archived from the original on April 7, 2016. Retrieved June 3, 2017.
  85. Nestor, Marius (September 24, 2015). "GTK+ 3.18.0 Officially Released as Part of the GNOME 3.18 Desktop Environment". Softpedia. Archived from the original on May 25, 2019. Retrieved May 25, 2019.
  86. Clasen, Matthias (March 21, 2016). "GTK+ 3.20". GNOME Mail Services (Mailing list). Archived from the original on March 12, 2019. Retrieved May 20, 2019.
  87. "GTK+ 3.20 – Style Classes and Element Names". November 20, 2015. Archived from the original on March 5, 2016. Retrieved December 18, 2015.
  88. Clasen, Matthias (September 21, 2016). "GTK+ 3.22 released". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  89. "GTK+ Wayland tablet support is merged – Carlos Garnacho". April 6, 2016. Archived from the original on April 16, 2016. Retrieved April 8, 2016.
  90. "hutterer input". www.x.org. Archived from the original on September 23, 2016. Retrieved September 23, 2016.
  91. ^ "Gtk 4.0 will not be stable until Gtk 4.6". June 13, 2016. Archived from the original on June 23, 2016. Retrieved June 15, 2016.
  92. ^ "Gtk 5.0 will not be stable until Gtk 5.6". June 14, 2016. Archived from the original on June 23, 2016. Retrieved June 15, 2016.
  93. Clasen, Matthias (September 3, 2018). "gtk+ 3.24.0". GNOME Mail Services (Mailing list). Archived from the original on May 25, 2019. Retrieved May 20, 2019.
  94. Clasen, Matthias (March 31, 2017). "gtk+ 3.90.0". GNOME Mail Services (Mailing list). Archived from the original on December 29, 2017. Retrieved May 20, 2019.
  95. "Commits · master · GNOME / gtk". GitLab. Archived from the original on June 22, 2020. Retrieved November 22, 2019.
  96. Clasen, Matthias (October 18, 2017). "gtk+ 3.92.1". GNOME Mail Services (Mailing list). Archived from the original on December 29, 2017. Retrieved May 20, 2019.
  97. Clasen, Matthias (October 23, 2017). "GTK+ 3.92". GTK Development Blog. Archived from the original on May 25, 2019. Retrieved May 25, 2019.
  98. "GNOME 3.26 Released". September 13, 2017. Archived from the original on March 16, 2021. Retrieved October 19, 2017.
  99. Clasen, Matthias (June 26, 2018). "gtk+ 3.94.0". GNOME Mail Services (Mailing list). Archived from the original on July 5, 2018. Retrieved May 20, 2019.
  100. ^ Clasen, Matthias (May 7, 2019). "gtk 3.96". GNOME Mail Services (Mailing list). Archived from the original on May 28, 2019. Retrieved May 28, 2019.
  101. "Introducing amtk". Archived from the original on June 22, 2020. Retrieved May 4, 2020.
  102. Clasen, Matthias (February 13, 2020). "GTK 3.98". GTK+ Development Blog. Archived from the original on February 18, 2020. Retrieved February 18, 2020.
  103. ^ Clasen, Matthias (June 9, 2021). "gtk 4.3.1". FTP Releases (Mailing list). Archived from the original on July 10, 2021. Retrieved July 10, 2021.
  104. "Emmanuele Bassi / guadec-2020". GitLab. Archived from the original on August 15, 2020. Retrieved September 12, 2020.
  105. Clasen, Matthias (December 16, 2020). "gtk 4.0.0". GNOME Mail Services (Mailing list). Archived from the original on October 28, 2021. Retrieved December 16, 2020.
  106. Clasen, Matthias (March 30, 2021). "gtk 4.2.0". GNOME Mail Services (Mailing list). Archived from the original on October 27, 2021. Retrieved March 30, 2021.
  107. Clasen, Matthias (August 23, 2021). "gtk 4.4.0". GNOME Mail Services (Mailing list). Archived from the original on August 24, 2021. Retrieved January 23, 2022.
  108. Clasen, Matthias (December 30, 2021). "gtk 4.6.0". FTP Releases (Mailing list). Archived from the original on January 23, 2022. Retrieved January 23, 2022.
  109. Clasen, Matthias (September 6, 2022). "gtk 4.8.0". Archived from the original on January 11, 2023. Retrieved January 11, 2023.
  110. "NEWS · 4.10.1 · GNOME / gtk · GitLab". GitLab. March 13, 2023. Archived from the original on April 19, 2023. Retrieved April 19, 2023.
  111. "On deprecations – GTK Development Blog". October 30, 2022. Archived from the original on February 28, 2024. Retrieved April 21, 2024.

Bibliography

External links

GTK and its applications
Platform
GTK
freedesktop.org
(shared)
Development
GUI designer, RAD
IDEs
GNOME
Cinnamon
Xfce
LXDE
Graphical shells
3rd-party
applications
Office
Education
Graphics
Internet
Audio
Video
Utilities
GNU Project
History
Licenses
Software
Contributors
Other topics
List of widget toolkits
Low-level platform-specific
On AmigaOS
On Classic Mac OS, macOS
On Windows
On Unix,
under X11
On BeOS, Haiku
On Android
CLI
Low Level Cross-platform
CLI
C
Java
High-level, platform-specific
On AmigaOS
On Classic Mac OS, macOS
Object Pascal
Objective-C, Swift
C++
CLI
On Windows
CLI
C++
Object Pascal
On Unix,
under X11
On Android
High-level, cross-platform
C
C++
Objective-C
CLI
Adobe Flash
Go
Haskell
Java
JavaScript
Common Lisp
Lua
Pascal
Object Pascal
Perl
PHP
Python
Ruby
Tcl
XML
shell
Dart
Graphical user interface builders
Qt
Open source
GTK
Open source
Proprietary
wxWidgets
Open source
CLI
Open source
Proprietary
VCL,
related
Open source, LCL
Proprietary
Cocoa
Proprietary
Java-based
Open source
Proprietary
Windows API
Open source
Proprietary
Other
Open source
Proprietary
Categories: