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Appendix A: X Reference Page
Synopsis
The X Window System is a network-transparent window system developed at MIT which runs on a
wide range of computing and graphics machines. It should be relatively straightforward to build the MIT
software distribution on most ANSI C-compliant and POSIX-compliant systems. Commercial
implementations are also available for a wide range of platforms.
The X Consortium requests that the following names be used when referring to this software:
• X
• X Window System
• X Version 11
• X Window System, Version 11
• X11
X Window System is a trademark of the Massachusetts Institute of Technology.
Description
X Window System servers run on computers with bit-mapped displays. The server distributes user input
to and accepts output requests from various client programs through a variety of different interprocess
communication channels. Although the most common case is for the client programs to be running on
the same machine as the server, clients can be run transparently from other machines (including
machines with different architectures and operating systems) as well.
X supports overlapping hierarchical subwindows and text and graphics operations, on both monochrome
and color displays. For a full explanation of the functions that are available, refer to:
• Xlib - C Language X Interface,
• The X Window System Protocol specification,
• X Toolkit Intrinsics - C Language Interface, and
• The various Toolkit documents.
The number of programs that use X is quite large. Programs provided in the core MIT distribution
include: a terminal emulator (xterm), a window manager (twm), a display manager (xdm), a console
redirect program (xconsole), mail managing utilities (xmh and xbiff), a manual page browser (xman), a
bitmap editor (bitmap), a resource editor (editres), a ditroff previewer (xditview), access control
programs (xauth and xhost), user preference setting programs (xrdb, xcmsdb, xset, xsetroot, xstdcmap,
and xmodmap), a load monitor (xload), clocks (xclock and oclock), a font displayer (xfd), utilities for
listing information about fonts, windows, and displays (xlsfonts, xfontsel, xwininfo, xlsclients, xdpyinfo,
Graphics Administration Guide for HP-UX 10.20
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