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fvwm-root(1) FVWM Modules fvwm-root(1)
NAME
fvwm-root - Sets the root window of the current X display to image
SYNOPSIS
fvwm-root [--retain-pixmap|-r] [--no-retain-pixmap] [--dummy|-d] [--no-
dummy] [--dither] [--no-dither] [--color-limit [ncolors] ] [--no-color-
limit] [--help|-h|-?] [--version|-V] image_file
DESCRIPTION
fvwm-root reads the image file specified in the command line and dis-
plays it in the root window. The supported image formats are XBM, XPM
and PNG if appropriated libraries are compiled in.
OPTIONS
These command line options are recognized by fvwm-root:
--retain-pixmap | -r
Causes fvwm-root to retain and publish the Pixmap with which the
background has been set (the ESETROOT_PMAP_ID and _XROOTPMAP_ID
properties are used). This is useful for applications which
want to use the root Pixmap on the background to simulate trans-
parency (for example, Eterm and Aterm use this method). This
option should also be used for the RootTransparent colorset
option, refer to the COLORSETS section of fvwm(1). If this
option is not used, fvwm-root sets the _XSETROOT_ID property to
None, and some programs, like FVWM modules, may use this to
update their background if the background is transparent (Trans-
parent colorset).
Note, a well behaved program, like fvwm, should listen to both
_XSETROOT_ID and _XROOTPMAP_ID property changes and update
itself correspondingly. However some programs listen only to
one of them, so you should either use this option or not depend-
ing on what part is implemented by these programs. You should
also use this option to get fast root-transparent menus in fvwm.
--no-retain-pixmap
This is a default. May be useful to explicitely force the
default even if "--retain-pixmap" is specified earlier.
--dummy | -d
Causes fvwm-root NOT to set the background, but to only free a
memory associated with the ESETROOT_PMAP_ID property (if any).
In any case the _XSETROOT_ID property is set to None.
--no-dummy
This is a default. May be useful to explicitely force the
default even if "--dummy" is specified earlier.
--dither
Causes fvwm-root to dither images for "smoother" rendition on
displays with color depth of 16 or lower. This the defaut with
color depth less or equal to 8.
--no-dither
Causes fvwm-root NOT to dither images. This is the default with
color depth greater than 8.
--color-limit ncolors
Causes fvwm-root to limit its color use to ncolors (if speci-
fied). This option is taken in account only with color depth
less or equal to 8 (and a TrueColor or GrayScale visual). The
default is to use the same color limit than fvwm. So in normal
situation this option is not useful. However, if fvwm use a pri-
vate colors map, as fvwm-root always use the default colors map
you should use this option for limiting colors correctly. If
ncolors is not specified a default is used.
--no-color-limit
Causes fvwm-root NOT to limit its color use.
--help Shows a short usage.
--version
Shows a version number.
COMPATIBILITY
In the past this utility was called xpmroot. This name is still sup-
ported as a symlink.
BUGS
Repeated use of fvwm-root with different xpm pixmaps will use up slots
in your color table pretty darn fast.
AUTHOR
Rob Nation
Rewritten and enhanced by fvwm-workers.
3rd Berkeley Distribution 20 January 2006 (2.5.16) fvwm-root(1)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:34:51 GMT 2007
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