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Hub AI
GTK AI simulator
(@GTK_simulator)
Hub AI
GTK AI simulator
(@GTK_simulator)
GTK
GTK (formerly GIMP ToolKit and GTK+) is a free open-source widget toolkit for creating graphical user interfaces (GUIs) 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.
The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are actively maintained, while GTK 2 is no longer supported. GTK 1 is independently maintained by the CinePaint project.
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 object orientation. While GTK is mainly used with windowing systems based on Wayland (and prior to that on Wayland's predecessor X11), 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, although this was deprecated in 2025 with the X11 backend to indicate both would be removed in GTK version 5. GTK uses Vulkan or GL to draw most graphical elements.
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.
GDK acts as a wrapper around the low-level functions provided by the underlying windowing and graphics systems.
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 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 are available for using GTK from languages other than C, including C++, Genie, JavaScript, Perl, Python, Vala, and others.
GTK
GTK (formerly GIMP ToolKit and GTK+) is a free open-source widget toolkit for creating graphical user interfaces (GUIs) 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.
The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are actively maintained, while GTK 2 is no longer supported. GTK 1 is independently maintained by the CinePaint project.
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 object orientation. While GTK is mainly used with windowing systems based on Wayland (and prior to that on Wayland's predecessor X11), 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, although this was deprecated in 2025 with the X11 backend to indicate both would be removed in GTK version 5. GTK uses Vulkan or GL to draw most graphical elements.
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.
GDK acts as a wrapper around the low-level functions provided by the underlying windowing and graphics systems.
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 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 are available for using GTK from languages other than C, including C++, Genie, JavaScript, Perl, Python, Vala, and others.
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