icewmbg - a background settings manager for the IceWM window manager

icewmbg [OPTIONS]

icewmbg can assign a colour or image to the X11 desktop background. Many image formats are supported. Each icewm(1) work space can have its own background.

When the background image has changed then icewmbg can be notified to update the background. When switching work spaces it checks the image file modification time. If the file has changed then it reloads the background image from file.

icewmbg supports semi-transparency. Semitransparent background images and colours can be configured. If these are not specified then the default background is used.

It uses XINERAMA and RANDR to support backgrounds on all connected monitors. When monitors appear/disappear or change their resolution icewmbg will adjust. It supports an option for one large background over all monitors.

It should be started before icewm(1), preferably by the icewm-session(1) program.

SPECIFIC OPTIONS

Where multiple values can be given for images or colours they are separated by commas. When FILE is a directory then all images from that directory are used in sorted order.

-p, --replace

Replace an existing icewmbg. If there is a running icewmbg it is instructed to quit. The new icewmbg will take over.

-q, --quit

Tell the running icewmbg to quit. This option is used by icewm-session(1) when icewm(1) exits.

-r, --restart

Tell the running icewmbg to restart itself. This is useful when a background file or directory has changed or when settings in preferences files have changed.

-c, --config=FILE

Load preferences from FILE.

-t, --theme=THEME

Load the theme named THEME.

-i, --image=FILE[,FILE]*

Load background images from each FILE. This overrules the DesktopBackgroundImage preference.

-k, --color=COLOR[,COLOR]*

Use background colours from each COLOR. This overrules the DesktopBackgroundColor preference.

-s, --semis=FILE[,FILE]*

Load transparency images from each FILE. This overrules the DesktopTransparencyImage preference.

-x, --trans=NAME[,NAME]

Use transparency colours for each NAME. This overrules the DesktopTransparencyColor preference.

-e, --center={0|1}

Disable/Enable centring background. This overrules the DesktopBackgroundCenter preference.

-a, --scaled={0|1}

Disable/Enable scaling background. This overrules the DesktopBackgroundScaled preference.

-m, --multi={0|1}

Disable/Enable multi-head background. This overrules the DesktopBackgroundMultihead preference.

--display=DISPLAY

Use DISPLAY to connect to the X server. If this option is missing then DISPLAY is read from the environment variable DISPLAY.

--sync

Use a slower synchronous mode communication with X11 server.

GENERAL OPTIONS

-h, --help

Print a brief usage statement to stdout and exit.

-V, --version

Print the program version to stdout and exit.

-C, --copying

Print copying permissions to stdout for the program and exit.

PREFERENCES

By default icewmbg will load the background settings from the icewm(1) preferences files (see icewm-preferences(5)). The settings read are:

  DesktopBackgroundCenter    - Display desktop background centered
  DesktopBackgroundScaled    - Display desktop background scaled
  DesktopBackgroundColor     - Desktop background color(s)
  DesktopBackgroundImage     - Desktop background image(s)
  SupportSemitransparency    - Support for semitransparent terminals
  DesktopTransparencyColor   - Semitransparency background color(s)
  DesktopTransparencyImage   - Semitransparency background image(s)
  DesktopBackgroundMultihead - One background over all monitors

First these settings are read from the preferences file. Then the theme file from the current theme is read, which may overrule the preferences settings. Lastly the prefoverride file is read, which overrides again. Therefore, if you want to allow the theme to set the background use preferences for your settings, otherwise use prefoverride. See icewm-prefoverride(5).

SCALING

Often a background image has a different width or height than the screen. The settings can specify to centre (DesktopBackgroundCenter) or scale (DesktopBackgroundScaled) an image. Either option is either 0 (disabled) or 1 (enabled). What happens for their combination is given by the following table:

  center:0 scaled:0 = the background is replicated in both directions
  center:1 scaled:0 = the background is centered, but not scaled
  center:1 scaled:1 = fill one dimension and keep aspect the ratio
  center:0 scaled:1 = fill both dimensions and keep aspect the ratio

icewm(1), icewm-preferences(5), icewm-prefoverride(5), wmsetbg(1), xsetbg(1), xv(1).

icewmbg had no known bugs at the time of release. Please report bugs for current versions to the source code repository at https://github.com/bbidulock/icewm/issues.

Brian Bidulock mailto:bidulock@openss7.org.

See --copying for full copyright notice and copying permissions.

IceWM is licensed under the GNU Library General Public License. See the COPYING file in the distribution or use the --copying flag to display copying permissions.