Xlib
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 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 appeared around 1985, and is currently used in GUIs for many Unix-like operating systems. The XCB library is an attempt to replace Xlib. While Xlib is still used in some environments, modern versions of the X.org server implement Xlib on top of XCB.
Q178481
X Window System
MISC
Q188860
library
Concept
Q15777
C programming language
Concept
Q190686
function
Concept
Q44127
server
Concept
Q5482740
programmer
Concept
Q132364
protocol
Concept
Q1193246
widget toolkit
Concept
Q648988
X Toolkit Intrinsics
LOC
Q2499296
Athena widget set
MEDIA
Q1136830
Motif
MEDIA
Q1331203
FLTK
MEDIA
Q189464
GTK
MEDIA
Q201904
Qt
MEDIA
Q616360
Tk
MEDIA
Q727439
SDL (Simple DirectMedia Layer)
MISC
Q919155
SFML (Simple and Fast Multimedia Library)
MISC
Q782543
GUI
Concept
Q14656
Unix-like
MISC
Q9135
operating system
Concept
Q1557445
XCB
LOC
Q1557445
XCB
LOC
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
Q1579570
Xlib
ORG
1985-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1985
DATE
+11^^http://www.w3.org/2001/XMLSchema#decimal
11
NUMBER
+11^^http://www.w3.org/2001/XMLSchema#decimal
11
NUMBER
instance of
programming language
inception
instance of
operating system
instance of
instance of
operating system
operating system
instance of
instance of
subclass of
inception
inception