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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 .
Attributes are data about the window, such as its size, position, background color, etc. Properties are pieces of data that are attached to a window. Unlike attributes, properties have no meaning at the level of the X Window core protocol. A client can store arbitrary data in a property of a window.
The Xlib event loop only handles window system events; applications that need to be able to wait on other files and devices could construct their own event loop from primitives such as ConnectionNumber, but in practice tend to use multithreading. Very few programs use Xlib directly.
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.
The text between < html > and </ html > describes the web page, and the text between < body > and </ body > is the visible page content. The markup text < title > This is a title </ title > defines the browser page title shown on browser tabs and window titles and the tag < div > defines a division of the page used for easy styling.
XCB (X protocol C-language Binding) is a library implementing the client-side of the X11 display server protocol. XCB is written in the C programming language and distributed under the MIT License. The project was started in 2001 by Bart Massey and aims to replace Xlib.
Its graphics are GPU-accelerated and it supports styling, and mixing its own implementation controls with native system controls, which lets apps use native behaviour where it's important (for example, for IME text input.) IP Pascal uses a graphics library built on top of standard language constructs. Also unusual for being a procedural toolkit ...
XKB allows for the keyboard to switch between any of four different character groups. This is usually done for making a keyboard behave like a keyboard of a different language. In this context, the set of characters that is generated by the keyboard is called a group, and a keyboard can switch to a different group at any time.