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XScreenSaver !!!XScreenSaver NAME SYNOPSIS DESCRIPTION OPTIONS ENVIRONMENT FILES AND URLS BUGS SEE ALSO COPYRIGHT AUTHOR ---- !!NAME webcollage - decorate the screen with random images from the web !!SYNOPSIS __webcollage__ [[-display ''host:display.screen''] [[-root] [[-verbose] [[-delay ''secs''] [[-timeout ''secs''] [[-background ''bg''] [[-filter ''command''] [[-filter2 ''command''] [[-http-proxy host[[:port]] !!DESCRIPTION The ''webcollage'' program pulls random image off of the World Wide Web and scatters them on the root window. One satisfied customer described it as ''giftopnm__(1), djpeg(1), and xli(1), xv(1), or xloadimage(1) tools. ''webcollage'' is written in perl(1) and requires Perl 5. !!OPTIONS ''webcollage'' accepts the following options: __-root__ Draw on the root window. This option is manditory: drawing to a window other than the root window is not yet supported. __-verbose__ or __-v__ Print diagnostics to stderr. Multiple ''-v'' switches increase the amount of output. ''-v'' will print out only the URLs of the images; ''-vv'' will print all the commands being run; and ''-vvv'' will print more than you care about. __-delay__ ''seconds'' How long to sleep between images. Default 1 second. (Remember that this program probably spends a lot of time waiting for the network.) __-background__ ''color-or-ppm'' What to use for the background onto which images are pasted. This may be a color name, a hexadecimal RGB specification in the form '#rrggbb', or the name of a PPM file. __-timeout__ ''seconds'' How long to wait for a URL to complete before giving up on it and moving on to the next one. Default 30 seconds. __-filter__ ''command'' Filter all source images through this command. The command must take a PPM file on stdin, and write a new PPM file to stdout. One good choice for a filter would be: webcollage -root -filter 'vidwhacker -stdin -stdout' __-filter2__ ''command'' Filter the ''composite'' image through this command. The ''-filter'' option applies to the sub-images; the ''-filter2'' applies to the final, full-screen image. __-http-proxy__ ''host:port'' If you must go through a proxy to connect to the web, you can specify it with this option, or with the __$http_proxy__ or __$HTTP_PROXY__ environment variables. !!ENVIRONMENT __DISPLAY__ to get the default host and display number. __XENVIRONMENT__ to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property. __http_proxy__ or __HTTP_PROXY__ to get the default HTTP proxy host and port. !!FILES AND URLS ''/usr/dict/words'' or ''/usr/share/lib/dict/words'' or ''/usr/share/dict/words'' To find the random words to feed to search engines. ''http://random.yahoo.com/bin/ryl, http://image.altavista.com/'' To find random web pages. !!BUGS When drawing on the root window, it always uses the default colormap. This is actually a limitation of xv. But regardless, when using this program with xscreensaver, it must be given the __default-n__ visual specification (see the xscreensaver(1) manual for more details.) Only the GIF and JPEG image formats are supported. Transparent and animating GIFs are not supported. It's slow. Too many of the images that it finds are text, not pictures. This is because most of the web is pictures of text. Which is pretty sad. !!SEE ALSO X(1), xscreensaver(1), xli(1), xv(1), xloadimage(1), ppmmake(1), giftopnm(1), pnmpaste(1), pnmscale(1), djpeg(1), cjpeg(1), xdpyinfo(1), perl(1), vidwhacker(1), dadadodo(1) !!COPYRIGHT Copyright 1998, 1999 by Jamie Zawinski. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided !!AUTHOR Jamie Zawinski ----
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