NAME

       bsetbg - utility to manipulate the appearance of the X11 desktop's root window.

SYNOPSIS

       bsetbg [options] image

DESCRIPTION

       bsetbg  is  intended to provide a standard method for the Blackbox window manager to alter the background
       of the root window (although it will work with any other window  manager  as  well).  bsetbg  acts  as  a
       wrapper both to bsetroot and to a flexible variety of third-party applications that it uses when handling
       images files.

OPTIONS

       -f, -full image
              image is stretched to fill the entire desktop.

       -t, -tile image
              image is tiled on the desktop.

       -c, -center image
              image is centered on the desktop.

       -e, -exec program options fallback-arg image
              This  option  tells  bsetbg  to  run  a  separate command by executing program with options, where
              options are arguments to program.

              If a fallback-arg is supplied (-full, -tile, or -center as described above),  bsetbg  will  assume
              that  the  last argument is a filename. In the case that program exits non-zero or isn't available
              on the target system, bsetbg will try to handle the file with the fallback argument.

              See the EXAMPLES section for more information on -exec.

       -p, -post list
              Specifies a list of arguments to pass to the $POST_COMMAND.

       -d, -debug
              Debugging mode. bsetbg will print commands without executing them.

       -g, -generate list
              Output a list of default configuration values, suitable  for  redirecting  into  ~/.bsetbgrc.  Any
              arguments  that  are  supplied  will  be considered applications to search for in the system path,
              overriding bsetbg's internal defaults.

       -app imageApp
              Use this flag to specify which image application to use. This application may be one of  the  pre-
              defined  list  or any application capable of displaying an image on the root window. This flag may
              be used in conjunction with passing application specific  parameters to the application, in  which
              case they should be enclosed in double quotes.

       -v, -version
              Output version number.

       -h, -help
              Output a brief usage message.

OTHER OPTIONS

       bsetbg  will also accept all of the arguments for bsetroot.  Consult the bsetroot(1) man page for further
       information.

CONFIGURATION

       bsetbg will read its configuration values from the file ~/.bsetbgrc if it exists. Otherwise, it will scan
       the system path for a pre-defined list of image applications to use (currently this list consists of qiv,
       xli, xv, wmsetbg, Esetroot, display, and xsetbg).  ~/.bsetbgrc should contain the following variables:

           CENTER="string"
              Application and arguments to be used to center an image  on  the  root  window  when  the  -center
              argument is specified.

           FULL="string"
              Application  and  arguments  to be used to stretch an image to fill the root window when the -full
              argument is specified.

           TILE="string"
              Application and arguments to be used to tile an image on the root window when the  -tile  argument
              is specified.

           DEFAULT="string"
              Action to take place by default if none of the above have been specified.

       The following variables are optional:

           NO_EXEC="boolean"
              If this variable is set, bsetbg will never modify the root window.

           POST_COMMAND="string"
              This  variable specifies a command that bsetbg will run after every successful modification of the
              root window.

           LOG_LAST_CMD="boolean"
              If this variable is set, bsetbg will keep a logfile of the last two successful commands.

           LOGFILE="string"
              This variable can specify the logfile to be used when $LOG_LAST_CMD is defined.   The  default  is
              ~/.bsetbg_last_cmd .

       As mentioned above, bsetbg will function perfectly for the majority of users without having a
       configuration file. Power users who want more control over bsetbg's behavior should run bsetbg -g and use
       the output to create a ~/.bsetbgrc which may then be tweaked by hand.

EXAMPLES

       In this example, bsetbg will set the image in centered mode:

           bsetbg -center foo.png

       An example of the -exec argument:

           bsetbg -exec xv -root -quit -rmode 5 -rbg rgb:2/2/2 \      -center foo.png

       An example in which bsetbg creates a configuration file using xv and qiv:

            bsetbg -g xv qiv > ~/.bsetbgrc

       An example of the use of the -app argument:

           bsetbg -app qiv "-o rgb:d6/c5/a2 -x" -c foo.png

AUTHOR

       The author of bsetbg may be reached at tmk@lordzork.com.

SEE ALSO

       blackbox(1), bsetroot(1), qiv(1), xli(1), xv(1), display(1), wmsetbg(1)

bsetbg                                            February 2002                                        bsetbg(1)