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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] |
Xlib Square Example
Xlib (also known as libX11) is an X Window System protocol client library written in the C programming language. It contains functions for interacting with an X server. These functions allow programmers to write programs without knowing the details of the X protocol. Few applications use Xlib directly; rather, they employ other libraries that use Xlib functions to provide widget toolkits: * X Toolkit Intrinsics (Xt) * Athena widget set (Xaw) * Motif * FLTK * GTK * Qt (X11 version) * Tk * SDL (Simple DirectMedia Layer) * 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 using XCB. Data types The main types of data in Xlib are the Display structure and the types of the identifiers. Informally, a display is a physical or virtual device where graphical operations are done. The Display structure of the Xlib library ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X Window System Protocols And Architecture
In computing, the X Window System (commonly: X11, or X) is a network-transparent windowing system for bitmap displays. This article details the protocols and technical structure of X11. Client–server model and network transparency X uses a client–server model. An ''X server'' program runs on a computer with a graphical display and communicates with various ''client programs''. The X server acts as a go-between for the user and the client programs, accepting requests on TCP port 6000 plus the display number for graphical output (windows) from the client programs and displaying them to the user (display), and receiving user input (keyboard, mouse) and transmitting it to the client programs. In X, the server runs on the user's computer, while the clients may run on remote machines. This terminology reverses the common notion of client–server systems, where the ''client'' normally runs on the user's local computer and the server runs on the remote computer. The X Window ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Event Loop
In computer science, the event loop (also known as message dispatcher, message loop, message pump, or run loop) is a programming construct or design pattern that waits for and dispatches events or messages in a program. The event loop works by making a request to some internal or external "event provider" (that generally blocks the request until an event has arrived), then calls the relevant event handler ("dispatches the event"). It is also commonly implemented in servers such as web servers. The event loop may be used in conjunction with a reactor, if the event provider follows the file interface, which can be selected or 'polled' (the Unix system call, not actual polling). The event loop almost always operates asynchronously with the message originator. When the event loop forms the central control flow construct of a program, as it often does, it may be termed the main loop or main event loop. This title is appropriate, because such an event loop is at the highest leve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X Toolkit Intrinsics
X Toolkit Intrinsics (also known as Xt, for X toolkit) is a library that implements an API to facilitate the development of programs with a graphical user interface (GUI) for the X Window System. It can be used in the C language (or any language that can use the C API, such as C++). Design took place late 1980s to early 1990s. The low-level library Xlib is the client-side implementation of the X11 protocol. It communicates with an X server, but does not provide any function for implementing graphical control elements ("widgets"), such as buttons or menus. The Xt library provides support for creating widget types, but does not provide any itself. A programmer could use the Xt library to create and use a new type of widget. Xt implemented some object oriented concepts, such as inheritance (the user could make their own button by reusing code written for another type of button), events, and callbacks. Since the graphical user interface of applications typically requir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X11 Display Server Protocol
The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X originated as part of Project Athena at Massachusetts Institute of Technology (MIT) in 1984. The X protocol has been at version 11 (hence "X11") since September 1987. The X.Org Foundation leads the X project, with the current reference implementation, X.Org Server, available as free and open-source software under the MIT License and similar permissive licenses. Purpose and abilities X is an architecture-independent system for remote graphical user interfaces and input device capabilities. Each person using a networked computer terminal, terminal has the ability to interact with the display with any type of user input device. In its standard distribution it is a complete, albeit simple, display and interface solution which delivers a standard widget toolkit, toolkit and protocol stack for building graphical user interfaces on most Unix-like operating syst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
