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XWPICK - X Windows Image Pick up Utility.
GENERAL INFO
============
Xwpick lets you pick an image from an arbitrary window or rectangular
area of an X11-server and write it to a file in a variety of formats.
Why xwpick?
o Xwpick is convenient in use. The onmipresent blinking rectangle
surrounding the area to be picked and involment of the keyboard
input in addition to the mouse help to get rid of numerous parameters,
nevertheless satisfying in quite a natural way the most common needs
of users, namely, picking an image from a selected window or from
an arbitrary rectangular area and a possibility to change the
selected image just before outputing to a file.
Xwpick also allows to pick images from pop-up menus, which are on the
screen only when the mouse button is pressed and disappear immediately
after the button is released.
o Xwpick can output images in various formats: different PostScripts,
GIF, PCX (IBM PC), PICT (Macintosh), PPM (PBM Plus).
o Xwpick runs not only on UNIX platforms, but on OpenVMS (VAX/Alpha)
as well.
o Xwpick uses the Lempel-Ziv Welch (LZW) compression algorithm for
image encoding in PostScript, thus producing very compact files:
3-5 time less than files produced with Run Length Encoding (RLE) and
10-30 times less than files produced without compression.
PostScipt files produced by XWPICK automatically understand on what
kind of printer they are being output. On level 2 PostScript printers
the native LZW/ASCII85 decoding filters will be invoked, while on
level 1 printers the inline decompression code is executed. Rendering
time on level 2 printers is pretty fast (usually less than 1 minute),
on level 1 printers the image rendering, of cause, is much slower, but
nevertheless essentially faster than for Run Length Encoded PostScript
images.
LIMITATION
==========
Xwpick does not work on 24-bit DirectColor/TrueColor devices.
AUTHOR
======
Evgeni Chernyaev
chernaev@mx.ihep.su
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