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GDK
GDK (GIMP Drawing Kit) is a library that acts as a wrapper around the low-level functions provided by the underlying windowing and graphics systems. GDK lies between the display server and the GTK library, handling basic rendering such as drawing primitives, raster graphics (bitmaps), cursors, fonts, as well as window events and drag-and-drop functionality. Like GTK Scene Graph Kit (GSK), GDK is part of GTK and licensed under the GNU Lesser General Public License (LGPL). Software architecture GTK is implemented on top of an abstraction layer called GDK, freeing GTK from low-level concerns like input gathering, drag and drop, and pixel format conversion. GDK is an intermediate layer which separates GTK from the details of the windowing system. GDK is an important part of GTK's portability. Since low-level cross-platform functionality is already provided by GLib, all that is needed to make GTK run on other platforms is to port GDK to the underlying operating system's gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GTK Scene Graph Kit
GTK Scene Graph Kit (GSK) is the rendering and scene graph API for GTK introduced with version 3.90. GSK lies between the graphical control elements (widgets) and the rendering. Like GDK, GSK is part of GTK and licensed under the GNU Lesser General Public License (LGPL). Rationale GSK is part of GTK. GSK is meant to be used by GTK itself and by GTK-based applications that wish to replace Clutter for their UI. Applications that made use of Clutter instead of using only GTK are e.g. GNOME Shell, GNOME Videos, GNOME Boxes and Cheese. Any application which makes use of GTK's graphical control elements (widgets), as opposed to those applications getting a GTK window and then drawing themselves on it, benefit from GSK. Performance Drawing graphical control elements (widgets) without a scenegraph leads to rendering things that don't show up on the screen, things that do not need to be rendered; hence it leads to avoidable performance and battery life losses. The scenegraph is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphics Device Interface
The Graphics Device Interface (GDI) is a legacy component of Microsoft Windows responsible for representing graphical objects and transmitting them to output devices such as monitors and printers. It was superseded by DirectDraw API and later Direct2D API. Windows apps use Windows API to interact with GDI, for such tasks as drawing lines and curves, rendering fonts, and handling palettes. The Windows USER subsystem uses GDI to render such UI elements as window frames and menus. Other systems have components that are similar to GDI; for example: Mac OS had QuickDraw, and Linux and Unix have X Window System core protocol. GDI's most significant advantages over more direct methods of accessing the hardware are perhaps its scaling capabilities and its abstract representation of target devices. Using GDI, it is possible to draw on multiple devices, such as a screen and a printer, and expect proper reproduction in each case. This capability is at the center of most " What You ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayland (display Server Protocol)
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. A display server using the Wayland protocol is called a '' Wayland compositor'', because it additionally performs the task of a compositing window manager. Wayland is developed by a group of volunteers initially led by Kristian Høgsberg as a free and open-source community-driven project with the aim of replacing the X Window System with a secure and simpler windowing system for Linux and other Unix-like operating systems. The project's source code is published under the terms of the MIT License, a permissive free software licence. As part of its efforts, the Wayland project also develops a implementation of a Wayland compositor called ''Weston''. Overview The Wayland Display Server project was started by Red Hat developer Kristian Høgsberg in 2008. Beginning around 2010, Linux desktop graphics have moved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GLib
GLib is a bundle of three (formerly five) low-level system libraries written in C and developed mainly by GNOME. GLib's code was separated from GTK, so it can be used by software other than GNOME and has been developed in parallel ever since. The name "GLib" originates from the project's start as a GTK C utility library. Features GLib provides advanced data structures, such as memory chunks, doubly and singly linked lists, hash tables, dynamic strings and string utilities, such as a lexical scanner, string chunks (groups of strings), dynamic arrays, balanced binary trees, N-ary trees, quarks (a two-way association of a string and a unique integer identifier), keyed data lists, relations, and tuples. Caches provide memory management. GLib implements functions that provide threads, thread programming and related facilities such as primitive variable access, mutexes, asynchronous queues, secure memory pools, message passing and logging, hook functions (callback regist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The GNOME Project
GNOME Project is a community behind the GNOME desktop environment and the software platform upon which it is based. It consists of all the software developers, artists, writers, translators, other contributors, and active users of GNOME. The GNOME Foundation used to recognize GNOME as part of GNU; however, in 2021, the staff of the Foundation declared that GNOME is not a GNU Project. GNOME Foundation In August 2000, the GNOME Foundation was set up to deal with administrative tasks and press interest, and to act as a contact point for companies interested in developing GNOME software. While not directly involved in technical decisions, the Foundation does coordinate releases and decide which projects will be part of GNOME. Membership is open to anyone who has made a non-trivial contribution to the project. Members of the Foundation elect a board of directors every November, and candidates for the positions must be members themselves. Programs and events The GNOME Project holds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Event (computing)
In computing, an event is a detectable occurrence or change in the system's state, such as user input, hardware interrupts, system notifications, or changes in data or conditions, that the system is designed to monitor. Events trigger responses or actions and are fundamental to event-driven systems. These events can be handled synchronously, where the execution Thread (computing), thread is blocked until the event handler completes its processing, or asynchronously, where the event is processed independently, often through an event loop. Even when synchronous handling appears to block execution, the underlying mechanism in many systems is still asynchronous, managed by the event loop. Events can be implemented through various mechanisms such as Callback (computer programming), callbacks, message objects, signals, or interrupts, and events themselves are distinct from the implementation mechanisms used. Event propagation models, such as Event bubbling, bubbling, capturing, and pub/s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenGL
OpenGL (Open Graphics Library) is a Language-independent specification, cross-language, cross-platform application programming interface (API) for rendering 2D computer graphics, 2D and 3D computer graphics, 3D vector graphics. The API is typically used to interact with a graphics processing unit (GPU), to achieve Hardware acceleration, hardware-accelerated Rendering (computer graphics), rendering. Silicon Graphics, Inc. (SGI) began developing OpenGL in 1991 and released it on June 30, 1992. It is used for a variety of applications, including computer-aided design (CAD), video games, scientific visualization, virtual reality, and Flight simulator, flight simulation. Since 2006, OpenGL has been managed by the Non-profit organization, non-profit technology consortium Khronos Group. Design The OpenGL specification describes an abstract application programming interface, application programming interface (API) for drawing 2D and 3D graphics. It is designed to be implemented mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Window Manager
A window manager is system software that controls the placement and appearance of window (computing), windows within a windowing system in a graphical user interface. Most window managers are designed to help provide a desktop environment. They work in conjunction with the underlying graphical system that provides required functionality—support for graphics hardware, pointing devices, and a keyboard—and are often written and created using a widget toolkit. Few window managers are designed with a clear distinction between the windowing system and the window manager. Every graphical user interface based on a windows metaphor has some form of window management. In practice, the elements of this functionality vary greatly. Elements usually associated with window managers allow the user to open, close, minimize, maximize, move, resize, and keep track of running windows, including window decorators. Many window managers also come with various utilities and features such as task b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xlib
Xlib (also known as libX11) is an X Window System protocol client library (computer science), library written in the C (programming language), C programming language. It contains subroutine, functions for interacting with an X Server (computing), server. These functions allow programmers to write programs without knowing the details of the X Window System protocols and architecture, X protocol. Few applications use Xlib directly; rather, they employ other libraries that use Xlib functions to provide widget toolkits: * X Toolkit Intrinsics (Xt) * X Athena Widgets, Athena widget set (Xaw) * Motif (software), Motif * FLTK * GTK * Qt (software), Qt (X11 version) * Tk (software), Tk * Simple DirectMedia Layer, SDL (Simple DirectMedia Layer) * Simple and Fast Multimedia Library, SFML (Simple and Fast Multimedia Library) Xlib, which was first publicly released in September 1985, is used in GUIs for many Unix-like operating systems. A re-implementation of Xlib was introduced in 2007 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cairo (graphics)
Cairo (stylized as cairo) is an Open-source software, open-source graphics library that provides a vector graphics-based, device-independent Application programming interface, API for software developers. It provides primitives for Plane (mathematics), two-dimensional drawing across a number of different front and back ends, backends. Cairo uses hardware acceleration when available. Software architecture Language bindings A library written in one programming language may be used in another language if language binding, bindings are written; Cairo has a range of bindings for various languages including C++, C Sharp (programming language), C# and other Common Language Infrastructure, CLI languages, Delphi (programming language), Delphi, Eiffel (programming language), Eiffel, Fortran, Factor (programming language), Factor, Harbour (programming language), Harbour, Haskell (programming language), Haskell, Julia (programming language), Julia, Lua (programming language), Lua, Perl, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
