Quire

GTK

From Quire, the open reference·Free and open-source cross-platform widget toolkit for creating graphical user interfaces·9 min read
Redirected from Gtk
GTK
GTK
Image: source and license
Original authorsSpencer Kimball, Peter Mattis
DevelopersThe GNOME Project, eXperimental Computing Facility (XCF)
ReleaseApril 14, 1998
Stable release4.24.1[1]  / 1 October 2026
Preview release4.19.2 / June 27, 2025
Written inC, CSS[2]
Operating systemLinux and Unix-like; partial support for macOS and Windows
TypeWidget toolkit
LicenseLGPLv2.1+
Websitegtk.org
Repositorygitlab.gnome.org/GNOME/gtk

GTK (formerly GIMP ToolKit[3] and GTK+[4]) is a free and open-source widget toolkit for creating graphical user interfaces (GUIs)[5] targeted at Linux and specifically GNOME (though with some use in other desktop environments). It is licensed under the terms of the GNU LGPL, allowing both free and proprietary software to use it.[6]

The GTK team releases new versions on a regular basis.[7] GTK 4 and GTK 3 are actively maintained, while GTK 2 is no longer supported.[8] GTK 1 is independently maintained by the CinePaint project.[9]

Software architecture#edit

The GTK toolkit
The GTK toolkit Image: source and license
Simplified software architecture of GTK. Pango, GDK, ATK, GIO, Cairo and GLib
Simplified software architecture of GTK. Pango, GDK, ATK, GIO, Cairo and GLib Image: source and license
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.
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. Image: source and license

GTK is an object-oriented widget toolkit written primarily in C; it uses GObject (the GLib object system) for object orientation.[10] The library provides a set of graphical control elements (widgets) for creating graphical user interfaces.

While GTK is primarily used on Linux and Unix-like systems via Wayland and the X11, it is cross-platform and supports Microsoft Windows (via the Windows API), macOS (via Quartz), and web browsers through the Broadway HTML5 backend.[11]

Modern versions of GTK (GTK 4) utilize the GTK Scene Graph Kit (GSK) rendering engine, drawing graphical elements via Vulkan or OpenGL hardware acceleration.[12] GTK also features a CSS engine that allows developers and users to customize widget appearance at both the application and system levels.[13]

GTK Drawing Kit (GDK)#edit

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

GTK Scene Graph Kit (GSK)#edit

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#edit

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#edit

Language bindings are available for using GTK from languages other than C, including C++, Genie, JavaScript, Perl, Python, Vala, and others.[14]

Backends#edit

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 some Unix-like systems, it is a modern replacement for X11.
  • X11 – The default on Unix-like 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 WebSocket.[15][16]

Development tools#edit

GUI designers#edit

A screenshot of Cambalache Interface Designer
A screenshot of Cambalache Interface Designer Image: source and license

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

GTK Inspector#edit

A screenshot of the GTK Inspector
A screenshot of the GTK Inspector Image: source and license

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.[21] It was introduced with GTK version 3.14.[22][23]

Features#edit

  • 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#edit

GTK is mainly developed by The GNOME Project, which also develops the GNOME Development Platform and the GNOME Desktop Environment.[24] GTK is mainly written in C.[25] Many language bindings are available.

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.[26] GNOME incorporates standards and programs from freedesktop.org to better interoperate with other desktops.[citation needed]

Many GNOME applications have been ported to GTK 4, which was released in December 2020,[27] however some still use GTK+ 3 (GIMP being a major one).

Build automation#edit

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.[28]

Criticism#edit

The most common criticism of GTK is the lack of backward-compatibility in major updates, most notably in the application programming interface (API)[29] and theming.[30] As a result, application and theme developers often have to rewrite parts of their code to ensure compatibility with newer versions of GTK.

The compatibility breaks between minor releases during the GTK 3.x development cycle was explained in 2013 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. Before its release, Benjamin Otte said that GTK 4 would lower the pressure to innovate and move GTK towards stability.[31] 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.[citation needed] However, in 2025, GTK 5 is described in the official documentation as "a major new version of GTK that breaks both API and ABI compared to GTK 4.x.", like GTK 3 and 4.[32][33][34]

  • Aurélien Gâteau started Gwenview as an GTK application but switched to Qt early in development.[35]
  • 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.[36]
  • Hong Jen Yee, the creator of LXDE, expressed disdain for the GTK3 toolkit's radical breaking API changes and increased memory usage, leading him to port the project to Qt, renaming it LXQt.[37]
  • The Audacious music player moved to Qt in version 3.6.[38] 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."[39]
  • Wireshark has switched to Qt due to not having a good experience with GTK's cross-platform support.[40]
  • EasyEffects, a popular audio equalizer, is being ported to Qt.[41]

Use#edit

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

Applications#edit

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.[43] Other ports include DirectFB (for example used by the Debian installer).

Desktop environments#edit

Several desktop environments utilize GTK as the widget toolkit.

Current#edit

Inactive#edit

Window managers#edit

The following window managers use GTK:

GtkSourceView#edit

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.[citation needed]

GtkSpell#edit

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#edit

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.[44] Finally GTK was re-written to be object-oriented and was renamed GTK+.[45] 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#edit

The GTK 2.0.0 release (2002[46]) 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, released in 2005, GTK 2 depends on the Cairo graphics library for rendering vector graphics.[47]

GTK 3#edit

GTK version 3.0.0 (2011[48]) included revised input device handling, support for themes written with CSS-like syntax, and the ability to receive information about other opened GTK applications. All rendering was done using Cairo.[49]

The '+' was dropped returning to simply 'GTK' in February 2019 during a Hackathon.[50]

GTK 4#edit

Release of the first GTK 4 version was in December 2020. 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.[51]

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.
  • Cairo was de-emphasized and Vulkan or GL were used instead to draw most graphical elements.[52]

Releases#edit

Release seriesInitial releaseMajor enhancementsLatest minor version
1.01998-04-13[53]First stable version1.0.
1.21999-02-25[54]New widgets:
GtkFontSelector
GtkPacker
GtkItemFactory
GtkCTree
GtkInvisible
GtkCalendar
GtkLayout
GtkPlug
GtkSocket		1.2.10
2.02002-03-11[55]GObject
Overall support for UTF-8		2.0.9
2.22002-12-22[56]Multihead support2.2.4
2.42004-03-16[57]New widgets:
GtkFileChooser
GtkComboBox
GtkComboBoxEntry
GtkExpander
GtkFontButton
GtkColorButton		2.4.14
2.62004-12-16[58]New widgets:
GtkIconView
GtkAboutDialog
GtkCellView
The last to support Windows 98/Me		2.6.10
2.82005-08-13[59]Most widgets are rendered by Cairo2.8.20
2.102006-07-03[60]New widgets:
GtkStatusIcon
GtkAssistant
GtkLinkButton
GtkRecentChooser
Print support: GtkPrintOperation		2.10.14
2.122007-09-14[61]GtkBuilder2.12.12
2.142008-09-04[62]JPEG 2000 load support2.14.7
2.162009-03-13[63]New widget: GtkOrientable
Caps Lock warning in password entry
Improvements on GtkScale, GtkStatusIcon, GtkFileChooser		2.16.6
2.182009-09-23[64]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
2.202010-03-23[65]New widgets:
GtkSpinner
GtkToolPalette
GtkOffscreenWindow
Improvement on file chooser, keyboard handling, GDK
Introspection data is now included in GTK		2.20.1
2.222010-09-23[66]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
2.242011-01-30[67]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)[68]
3.02011-02-10[69]Development and design of the GTK 3 release of the toolkit started in February 2009 during the GTK Theming Hackfest held in Dublin[70]
The first draft of the development roadmap was released on April 9, 2009[71]
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[72]
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
3.22011-09-25[73]New widgets:
GtkLockButton
GtkOverlay
New Font Chooser dialog
New experimental backends:
Wayland
HTML5 (named "Broadway")		3.2.4
3.42012-03-26[74]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
3.62012-09-24[75]New widgets:
GtkSearchEntry
GtkMenuButton
GtkLevelBar
Vertical spin buttons
CSS animations, blur shadows
Support for cross-fading and transitions in themes		3.6.5
3.82013-03-25[76]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[77]		3.8.9
3.102013-09-23[78]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
3.122014-03-25[79]Client-side decorations[80]
Support for Wayland 1.5
New widget: GtkPopover (an alternative to menus and dialogs)		3.12.2
3.142014-09-22[81]GtkInspector (a copy of gtkparasite) introduced[82][83]
Improved support for gestures/multi-touch merged[84][85]
Deprecated:[86]
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[87]		3.14.15
3.162015-03-22[88]GDK supports rendering windows using OpenGL for X11 and Wayland using libepoxy
New widgets:
GtkGLArea
GtkStackSidebar
GtkModelButton
GtkPopoverMenu
Scrolling overhauled (scrollbar hidden by default[89])
Experimental Mir backend[90]		3.16.7
3.182015-09-23[91]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
3.202016-03-21[92]Further Integration of CSS nodes[93]
Move drag and drop down to GDK
New widget: GtkShortcutsWindow (shows keyboard shortcuts and gestures of an application)		3.20.10
3.222016-09-21[94]Last 3.x release[95]
Wayland tablet support is merged,[96] support for graphics tablets is considered feature complete[97]
GTK 3.22 shall be as rock-stable (and hence "boring") as GTK 2[31][98][99]		for 3+ years
3.22.29
3.242018-09-03[100]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
...
3.24.51
3.902017-03-31[101]GTK Scene Graph Kit (GSK) merged[7]
Remove any API marked as deprecated
Heavy development
break API & ABI[98][99]
A new Vulkan-renderer augments the old Cairo-renderer[102]		3.89.1

3.89.2
3.89.4
3.89.5
3.90
3.922017-10-18[103][104]As GNOME 3.26 was released already on September 13, 2017,[105] 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
3.942018-06-26[106]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
3.962019-05-07[107]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.[108]
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		3.93
3.94.0
3.982020-02-10[107]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[109]		3.96.0
3.99.02020-07-31[110]Introduced successor to Accessibility Toolkit (ATK).[111] 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[110]		3.99.4
4.02020-12-16[112]4.0.3
4.22021-03-30[113]4.2.1
4.42021-08-23[114]4.4.1
4.62021-12-30[115]4.6.9
4.82022-09-06[116]4.8.3
4.102023-03-04[117]GtkFileChooser deprecated (use GtkFileDialog)[118]4.10.5
4.122023-08-05[119]4.12.5
4.142024-03-12[120]4.14.6
4.162024-06-09[121]4.16.12
4.182025-03-14[122]4.18.6
4.192025-04-06[123]4.19.4
4.202025-08-29[124]4.20.4
4.212025-09-29[125]4.21.6
4.222026-03-06[126]4.22.5
4.242026-09-12[127]4.24.0
Legend:
Unsupported
Supported
Latest version
Preview version
Future version

See also#edit

References#edit

  1. ^ "4.24.1". October 1, 2026. Retrieved October 4, 2026.
  2. ^ "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.
  3. ^ "A brief description on how GTK was born". www.gtk.org. Archived from the original on June 9, 2023. Retrieved July 5, 2023.
  4. ^ 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.
  5. ^ The GTK+ Team. "GTK+ Features". Archived from the original on May 25, 2019. Retrieved September 8, 2014.
  6. ^ "Documentation". www.x.org. Archived from the original on December 21, 2019. Retrieved November 22, 2019.
  7. ^ a b "Projects/GTK/Roadmap - GNOME Wiki!". wiki.gnome.org. Archived from the original on May 22, 2019. Retrieved November 22, 2019.
  8. ^ "GTK 4.0 – GTK Development Blog". December 16, 2020. Archived from the original on May 28, 2023. Retrieved October 18, 2021.
  9. ^ "Robin Rowe / GTK1 · GitLab". GitLab. Archived from the original on March 9, 2023. Retrieved February 22, 2023.
  10. ^ "GObject Reference Manual". GNOME Developer Documentation.
  11. ^ "GTK Backends". GNOME Developer Documentation.
  12. ^ "GTK Scene Graph Kit Overview". GNOME Developer Documentation.
  13. ^ "GTK CSS Overview". GNOME Developer Documentation.
  14. ^ The GTK+ Team. "GTK+ Language Bindings". www.gtk.org. Archived from the original on May 25, 2019. Retrieved June 3, 2017.
  15. ^ "Using GTK+ with Broadway". GNOME Developer. GNOME. Archived from the original on June 14, 2021. Retrieved March 6, 2018.
  16. ^ "Broadway - GitHub symbiose/symbiose Wiki". GitHub. Archived from the original on June 28, 2023. Retrieved March 6, 2018.
  17. ^ GUADEC. "Cambalache: road to version 1.0".
  18. ^ "glade - man pages section 1: User Commands". docs.oracle.com. Retrieved September 11, 2024.
  19. ^ "Debian -- Package Search Results -- gazpacho". packages.debian.org. Archived from the original on June 28, 2023. Retrieved November 22, 2019.
  20. ^ "Nothing-personal - A development site for Crow Designer, GuiLoader and Rally - Google Project Hosting". Archived from the original on March 13, 2012. Retrieved February 17, 2014.
  21. ^ "GTK Inspector". GNOME Developer Documentation. Retrieved September 14, 2024.
  22. ^ "Introducing GtkInspector". May 15, 2014. Archived from the original on May 17, 2014. Retrieved May 17, 2014.
  23. ^ "Another GtkInspector update". July 11, 2014. Archived from the original on July 14, 2014. Retrieved July 13, 2014.
  24. ^ "GNOME Quick SWOT Analysis". The GNOME Project. Archived from the original on March 18, 2014. Retrieved March 18, 2014.
  25. ^ "GNOME Languages". Ohloh. Black Duck Software. Archived from the original on May 22, 2014. Retrieved May 22, 2014.
  26. ^ "About". GNOME Users And Developers European Conference (GUADEC). Archived from the original on October 4, 2011. Retrieved December 3, 2011.
  27. ^ "GTK 4.0". GTK development blog. December 16, 2020. Archived from the original on May 28, 2023. Retrieved October 18, 2021.
  28. ^ "Build system change GTK's master branch". mail.gnome.org. Archived from the original on August 15, 2017. Retrieved October 29, 2018.
  29. ^ "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.
  30. ^ mclasen (November 20, 2015). "A GTK+ update". Goings on. Archived from the original on May 2, 2016. Retrieved June 3, 2016.
  31. ^ a b "GUADEC2013: Benjamin Otte talks about GTK+". GUADEC. Archived from the original on March 6, 2014. Retrieved March 5, 2014.
  32. ^ "Gtk: Preparing for GTK 5". docs.gtk.org. Retrieved August 19, 2025.
  33. ^ "Gtk: Migrating from GTK 2.x to GTK 3". docs.gtk.org. Retrieved August 19, 2025.
  34. ^ "Gtk: Migrating from GTK 3.x to GTK 4". docs.gtk.org. Retrieved August 19, 2025.
  35. ^ 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!
  36. ^ 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.
  37. ^ Hong Jen Yee (March 26, 2013). "PCManFM Qt 0.1.0 released". Archived from the original on June 7, 2013. Retrieved September 10, 2014.
  38. ^ "Audacious - An Advanced Audio Player". audacious-media-player.org. Archived from the original on July 28, 2019. Retrieved November 22, 2019.
  39. ^ 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.
  40. ^ Gerald Combs (October 15, 2013). "We're switching to Qt". Archived from the original on October 19, 2013. Retrieved August 19, 2015.
  41. ^ "Things to do for Qt port · Issue #3521 · wwmm/easyeffects". GitHub. Retrieved July 21, 2025.
  42. ^ "A Brief (and Ancient) History of GIMP". Gimp.org. Archived from the original on September 5, 2015. Retrieved June 18, 2012.
  43. ^ "GTK+". WxWidgets Compared To Other Toolkits. Archived from the original on October 5, 2007. Retrieved August 28, 2007.
  44. ^ "LinuxWorld - Where did Spencer Kimball and Peter Mattis go?". Archived from the original on April 17, 1999. Retrieved August 19, 2013.
  45. ^ "What is the + in GTK+?". 2011. Archived from the original on March 26, 2012. Retrieved March 18, 2014.
  46. ^ "GTK+-2.0.0 release notes".
  47. ^ "GTK+ to Use Cairo Vector Engine". February 5, 2005. Retrieved December 27, 2009.
  48. ^ "GTK+ 3.0.0 released".
  49. ^ "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.
  50. ^ "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.
  51. ^ Clasen, Matthias. "GTK+ 4 Status Update" (PDF). Fedora People. Archived (PDF) from the original on April 22, 2024. Retrieved April 22, 2024.
  52. ^ GTK Development Team. "Gtk – 4.0: Common Questions". Retrieved September 26, 2025. Can I improve the performance of my application by using another backend of cairo (such as GL)? No. Most drawing in GTK is not done via cairo anymore (but instead by the GL or Vulkan renderers of GSK).
  53. ^ 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.
  54. ^ 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.
  55. ^ 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.
  56. ^ 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.
  57. ^ 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.
  58. ^ 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.
  59. ^ 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.
  60. ^ 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.
  61. ^ 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.
  62. ^ 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.
  63. ^ 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.
  64. ^ 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.
  65. ^ 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.
  66. ^ 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.
  67. ^ 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.
  68. ^ "Tags · GNOME / gtk · GitLab". GitLab. December 21, 2020. Archived from the original on December 4, 2023. Retrieved October 18, 2023.
  69. ^ 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.
  70. ^ "Gtk+ 3.0 Theming API Hackfest". Silicon Island. Archived from the original on July 17, 2011. Retrieved June 3, 2017.
  71. ^ "Gtk+ 3 roadmap draft". Archived from the original on April 12, 2009. Retrieved June 3, 2017.
  72. ^ "Attic/ProjectRidley - GNOME Wiki!". wiki.gnome.org. Archived from the original on March 4, 2016. Retrieved March 29, 2014.
  73. ^ 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.
  74. ^ 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.
  75. ^ 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.
  76. ^ 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.
  77. ^ "Frame clock: GDK 3 Reference Manual". developer.gnome.org. Archived from the original on April 14, 2017. Retrieved April 13, 2017.
  78. ^ 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.
  79. ^ 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.
  80. ^ "Client-side decorations in themes | Goings on". December 5, 2013. Archived from the original on September 19, 2015. Retrieved December 31, 2015.
  81. ^ 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.
  82. ^ Matthias Clasen (May 15, 2014). "GtkInspector Author's blog entry". Archived from the original on May 17, 2014. Retrieved May 17, 2014.
  83. ^ "GtkInspector in GNOME wiki". May 15, 2014. Archived from the original on May 24, 2014. Retrieved May 17, 2014.
  84. ^ "Merging gestures into 3.14". May 23, 2014. Archived from the original on September 14, 2016. Retrieved May 23, 2014.
  85. ^ "RFC: gestures". March 4, 2014. Archived from the original on May 24, 2014. Retrieved May 23, 2014.
  86. ^ "gtk+ 3.13.2". May 27, 2014. Archived from the original on May 29, 2014. Retrieved May 28, 2014.
  87. ^ "gtk+ 3.13.3". June 24, 2014. Archived from the original on December 15, 2014. Retrieved June 25, 2014.
  88. ^ 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.
  89. ^ 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.
  90. ^ "GTK+ 3.16.0 released". mail.gnome.org. Archived from the original on April 7, 2016. Retrieved June 3, 2017.
  91. ^ 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.
  92. ^ 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.
  93. ^ "GTK+ 3.20 – Style Classes and Element Names". November 20, 2015. Archived from the original on March 5, 2016. Retrieved December 18, 2015.
  94. ^ 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.
  95. ^ "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.
  96. ^ "GTK+ Wayland tablet support is merged – Carlos Garnacho". April 6, 2016. Archived from the original on April 16, 2016. Retrieved April 8, 2016.
  97. ^ "hutterer input". www.x.org. Archived from the original on September 23, 2016. Retrieved September 23, 2016.
  98. ^ a b "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.
  99. ^ a b "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.
  100. ^ 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.
  101. ^ 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.
  102. ^ "Commits · master · GNOME / gtk". GitLab. Archived from the original on June 22, 2020. Retrieved November 22, 2019.
  103. ^ 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.
  104. ^ Clasen, Matthias (October 23, 2017). "GTK+ 3.92". GTK Development Blog. Archived from the original on May 25, 2019. Retrieved May 25, 2019.
  105. ^ "GNOME 3.26 Released". September 13, 2017. Archived from the original on March 16, 2021. Retrieved October 19, 2017.
  106. ^ 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.
  107. ^ a b 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.
  108. ^ "Introducing amtk". Archived from the original on June 22, 2020. Retrieved May 4, 2020.
  109. ^ Clasen, Matthias (February 13, 2020). "GTK 3.98". GTK+ Development Blog. Archived from the original on February 18, 2020. Retrieved February 18, 2020.
  110. ^ a b 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.
  111. ^ "Emmanuele Bassi / guadec-2020". GitLab. Archived from the original on August 15, 2020. Retrieved September 12, 2020.
  112. ^ 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.
  113. ^ 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.
  114. ^ 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.
  115. ^ 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.
  116. ^ Clasen, Matthias (September 6, 2022). "gtk 4.8.0". Archived from the original on January 11, 2023. Retrieved January 11, 2023.
  117. ^ "NEWS · 4.10.1 · GNOME / gtk · GitLab". GitLab. March 13, 2023. Archived from the original on April 19, 2023. Retrieved April 19, 2023.
  118. ^ "On deprecations – GTK Development Blog". October 30, 2022. Archived from the original on February 28, 2024. Retrieved April 21, 2024.
  119. ^ Clasen, Matthias (July 28, 2023). "NEWS · 4.12.0 · GNOME / gtk · GitLab". GitLab. Retrieved January 4, 2025.
  120. ^ Clasen, Matthias (March 12, 2024). "NEWS · 4.14.0 · GNOME / gtk · GitLab". GitLab. Retrieved January 4, 2025.
  121. ^ Clasen, Matthias (September 7, 2024). "NEWS · 4.16.0 · GNOME / gtk · GitLab". GitLab. Retrieved January 4, 2025.
  122. ^ Clasen, Matthias (March 14, 2025). "NEWS · 4.18.0 · GNOME / gtk · GitLab". GitLab. Retrieved July 28, 2025.
  123. ^ Clasen, Matthias (April 6, 2025). "NEWS · 4.19.0 · GNOME / gtk · GitLab". GitLab. Retrieved October 23, 2025.
  124. ^ Clasen, Matthias (August 29, 2025). "NEWS · 4.20.0 · GNOME / gtk · GitLab". GitLab. Retrieved October 23, 2025.
  125. ^ Clasen, Matthias (September 29, 2025). "NEWS · 4.21.0 · GNOME / gtk · GitLab". GitLab. Retrieved October 23, 2025.
  126. ^ Clasen, Matthias (March 6, 2026). "News". gitlab.gnome.org. Retrieved March 6, 2026.
  127. ^ Clasen, Matthias (September 12, 2026). "4.24.0". gitlab.gnome.org. Retrieved September 29, 2026.

Bibliography#edit

Categories GTKApplication programming interfacesC (programming language) librariesCross-platform softwareFree computer librariesFree software programmed in CGNOMESoftware that uses Cairo (graphics)Software that uses MesonSoftware using the GNU Lesser General Public LicenseWidget toolkitsX-based libraries

This article is mirrored from “GTK” on English Wikipedia, revision 1377437475, written by Wikipedia's contributors and licensed CC BY-SA 4.0. Editing it here creates a Quire copy with its own history.

Synced with Wikipedia revision 1377437475 · just now