wmsetbg(1)
NAME
wmsetbg - sets the background on the X11 display
SYNOPSIS
wmsetbg [-display display] [--update-domain domain|--update-wmaker] [options] [image]
DESCRIPTION
wmsetbg reads the specified image (in any format supported by the WRaster library) and puts it on the root window. It can either scale the image or tile it to make it fit the root window. Window Maker uses this command internally to set the root window image on start up.
OPTIONS
--back-color|-b color
the specified color is used as the background color for the
texture. Window Maker temporary sets the background to this
color while loading and processing the texture. You can specify
colors using their X11 names or as an RGB triplet (either as
"rgb:RR/GG/BB" or "#RRGGBB") (reference to appropriate manpage
should be here). In the later case color is a quoted string.
--center|-e
centers the image in the screen
--colors|-c count
limit the number of colors per channel to use for the image
-display display
connect to the X display
--dither|-d
enable color dithering on image
--fillscale|-f
scales the specified image to fill screen while preserving
aspect ratio
--help|-h
print a help message with the list of options
--match|-m
use the best-matching-color algorithm when converting image to
indexed color palette
--maxscale|-a
scales the specified image to fit inside the screen preserving
its aspect ratio
--parse|-p texture
parses the specified texture as a proplist style texture
--scale|-s
scales the specified image to fill the screen (default)
--smooth|-S
use a smooth scaling algorithm when resizing image
--tile|-t
tiles the specified image
--update-domain|-D domain
updates the specified domain database
--update-wmaker|-u
updates the Window Maker defaults database
--version|-v
print the version of Window Maker from which the program comes
--workspace|-w workspace
update background only for the specified workspace
--xinerama|-X
stretch image across Xinerama heads
INDEXED COLOR SCREENS
If your screen is not in a True Color configuration (generally sold as
16,777,216 colors) but in a indexed color mode (256 colors, 16 colors,
... which are based on a ColorMap) then Window Maker may need to
process the image to convert it to a limited number of colors before
using it for a background image.
There are two options to choose what algorithm you want to use:
--match or -m
Search for the closest matching color from the current colormap;
this is the fastest algorithm but may lead to less good-looking
result.
--dither or -d
Use a more complex algorithm which modify surrounding pixels to
get a closer-looking color on average; this is slower but
provides better looking images.
If none is specified, then it is Window Maker's configuration choice
that will be used.
You can also use the option --colors to reduce the total number of
colors from the image before the algorithm is applied. The value
specified with the option defines the number of possible values for
each primary color (red, green and blue), for example 8 would reduce
the image to use only 8*8*8=512 colors before applying the conversion
algorithm.
SEE ALSO
wmaker(1)
AUTHOR
This man page was written by Marcelo Magallon <mmagallo@debian.org>.
Window Maker was written by Alfredo K. Kojima
<kojima@windowmaker.info>. wmsetbg was written by Dan Pascu
<dan@windowmaker.info>
April 2015 wmsetbg(1)
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