1 


xlock - Locks the  local  X  display  until  a  password  is
entered.

xlock [ -help ] [ -version  ]  [  -resources  ]  [  -display
displayname  ] [ -visual visualname ] [ -name resourcename ]
[ -mode modename ] [ -delay usecs ] [ -batchcount  num  ]  [
-count  num ] [ -cycles num ] [ -ncolors num ] [ -size num ]
[ -saturation value ] [ -erasemode modename ] [  -erasedelay
usecs  ] [ -/+allowaccess ] [ -vtlock modename ] [ -/+nolock
] [ -/+inwindow ] [ -/+inroot ] [ -/+remote ] [ -/+mono ]  [
-/+allowroot ] [ -/+debug ] [ -/+description ] [ -/+echokeys
] [ -/+enablesaver ] [ -/+resetsaver ] [ -/+grabmouse ] [  -
/+grabserver  ] [ -/+install ] [ -/+mousemotion ] [ -/+sound
] [ -/+timeelapsed ] [ -/+usefirst ] [ -/+verbose ] [  -nice
level  ] [ -lockdelay seconds ] [ -timeout seconds ] [ -font
fontname ] [ -planfont fontname ] [ -bg color ] [ -fg  color
]  [  -background  color ] [ -foreground color ] [ -username
string ] [ -password string ] [ -info string ]  [  -validate
string   ]  [  -invalid  string  ]  [  -geometry  geom  ]  [
-icongeometry geom ] [ -glgeometry geom ] [ -/+wireframe ] [
-/+showfps  ] [ -fpsfont fontname ] [ -/+fpstop ] [ -/+use3d
] [ -delta3d value ] [ -none3d color ] [ -right3d color ]  [
-left3d color ] [ -both3d color ] [ -program programname ] [
-messagesfile formatted-filename ] [ -messagefile filename ]
[  -message  string  ]  [  -messagefont fontname ] [ -bitmap
filename ] [  -cpasswd  crypted-password  ]  [  -forceLogout
minutes  ]  [  -logoutButtonLabel textstring ] [ -logoutBut-
tonHelp textstring ] [ -logoutFailedString textstring ] [  -
/+dtsaver  ]  [  -modulepath  path ] [ -locksound string ] [
-infosound string ] [ -validsound string ]  [  -invalidsound
string  ]  [  -startCmd  string  ]  [  -endCmd  string  ]  [
-logoutCmd string ]

xlock locks the X server till the user enters their password
at  the  keyboard.   While  xlock is running, all new server
connections are refused.  The screen saver is disabled.  The
mouse  cursor  is  turned  off.  The screen is blanked and a
changing pattern is put on the screen.  If a key or a  mouse
button is pressed then the user is prompted for the password
of the user who started xlock.

2 If the  correct  password  is  typed,  then  the  screen  is
unlocked  and  the  X  server  is restored.  When typing the
password Control-U and Control-H  are  active  as  kill  and
erase  respectively.   To return to the locked screen, click
in the small icon version of the changing pattern.

2 In  the  lower  part  of  the  password  screen  a  text  is
displayed.  This message is taken from the first file of the
following that exists:   $HOME/.xlocktext,  $HOME/.plan,  or
$HOME/.signature.

2 On systems which support new BSD style  authentication,  the
password may be prefixed by an authentication style followed
by a colon (i.e. "style:password").  See  the  login.conf(5)
for more information on authentication styles.

2 NOTE_ON ETIQUETTE
2 Xlock should not be used on public terminals when there is a
high demand for them.

2 If you find a  public  terminal  that  has  been  locked  by
another user and there are no other terminals available, and
the terminal appears to have been  left  idle  for  a  while
(normally  more than 15 minutes), it is fair to try to reset
the session in some manner.

2 OPTIONS
-help
     Print options and a brief description to standard  out-
     put.

-version
     Print version number (if >= 4.00) to standard output.

-resources
     Print default resource file to standard output.

-display displayname
     The display option sets the X11 display to lock.  xlock
     locks all available screens on a given server, and res-
     tricts you to locking  only  a  local  server  such  as
     unix:0,  localhost:0,  or :0 unless you set the -remote
     option.

-visual visualname
     visualname which is one of  "StaticGray",  "GrayScale",
     "StaticColor",        "PseudoColor",       "TrueColor",
     "DirectColor", or "default".  default used to  set  the
     screen's  default  visual  (the visual of the root win-
     dow).

-name resourcename
     resourcename is used instead of XLock when looking  for
     resources to configure xlock.

-mode modename

     As of this writing there are over 90 display modes sup-
     ported  (plus  one  more for random selection of one of
     these).

ant     Shows Langton's and Turk's generalized ants.

apollonian
        Shows Apollonian Circles.

atlantis
        Shows  moving  sharks/whales/dolphin.   May  not  be
        available depending on how it was configured.

ball    Shows bouncing balls.

bat     Shows bouncing flying bats.

blot    Shows Rorschach's ink blot test.

bouboule
        Shows Mimi's bouboule of moving stars.

bounce  Shows bouncing footballs.

braid   Shows random braids and knots.

bubble  Shows popping bubbles.

bubble3d
        Shows Richard Jones's GL bubbles.  May not be avail-
        able depending on how it was configured.

bug     Shows Palmiter's bug evolution and a garden of Eden.

clock   Shows Packard's oclock.

coral   Shows a coral reef.

crystal Shows polygons in 2D plane groups.

daisy   Shows a meadow of daisies.

dclock  Shows a floating digital clock or message.

deco    Shows art as ugly as sin.

demon   Shows Griffeath's cellular automata.

dilemma Shows Lloyd's Prisoner's Dilemma simulation.

discrete
        Shows various discrete maps.

dragon  Shows Deventer's Hexagonal Dragons Maze.

drift   Shows cosmic drifting flame fractals.

cage    Shows the Impossible Cage, an Escher-like GL  scene.
        May not be available depending on how it was config-
        ured.

euler2d Shows a simulation  of  2D  incompressible  inviscid
        fluid.

eyes    Shows eyes following a bouncing grelb.

fadeplot
        Shows a fading plot of sine squared.

fire    Shows a 3D fire-like image.  May  not  be  available
        depending on how it was configured.

flag    Shows a waving flag image.  This may be  text  or  a
        graphic  image.   Default  text  is the hostname and
        operating system.

flame   Shows cosmic flame fractals.

flow    Shows dynamic strange attractors.

forest  Shows binary trees of a fractal forest.

galaxy  Shows crashing spiral galaxies.

gears   Shows GL's gears.  May not be available depending on
        how it was configured.

glplanet
        Animates texture mapped sphere (planet)

goop    Shows goop from a lava lamp.

grav    Shows orbiting planets.

helix   Shows string art.

hop     Shows real plane iterated fractals.

hyper   Shows spinning n-dimensional hypercubes.

ico     Shows a bouncing polyhedron.

ifs     Shows a modified iterated function system.

image   Shows randomly appearing logos.

juggle  Shows a Juggler, juggling.

julia   Shows the Julia set.

kaleid  Shows Brewster's Kaleidoscope.

kumppa  Shows kumppa.

laser   Shows spinning lasers.

life    Shows Conway's game of life.

life1d  Shows Wolfram's game of 1D life.

life3d  Shows Bays' game of 3D life.

lightning
        Shows Keith's fractal lightning bolts.

lisa    Shows animated lissajous loops.

lissie  Shows lissajous worms.

loop    Shows Langton's self-producing loops.

mandelbrot
        Shows mandelbrot sets.

marquee Shows text.

matrix  Shows the matrix.

maze    Shows a random maze and a depth first  search  solu-
        tion.

moebius Shows the Moebius Strip II, an Escher-like GL  scene
        with ants.  May not be available depending on how it
        was configured.

molecule
        Draws molecules, based on coordinates from PDB (Pro-
        tein Data Base) files.

morph3d Shows GL morphing polyhedra.  May not  be  available
        depending on how it was configured.

mountain
        Shows Papo's mountain range.

munch   Shows munching squares.

noof    Shows SGI Diatoms.

nose    Shows a man with a big nose runs around spewing  out
        text.

pacman  Shows Pacman(tm).

penrose Shows Penrose's quasiperiodic tilings.

petal   Shows various GCD Flowers.

pipes   Shows a  self-building  pipe  system.   May  not  be
        available depending on how it was configured.

polyominoes
        Shows attempts to place polyominoes into  a  rectan-
        gle.

puzzle  Shows a puzzle being scrambled and then solved.

pyro    Shows fireworks.

qix     Shows spinning lines a la Qix(tm).

roll    Shows a rolling ball.

rotor   Shows Tom's Roto-Rooter.

rubik   Shows an auto-solving  Rubik's  Cube.   May  not  be
        available depending on how it was configured.

sballs  Shows balls spinning like crazy in GL.  May  not  be
        available depending on how it was configured.

scooter Shows a journey through space tunnel and stars.

shape   Shows stippled rectangles, ellipses, and triangles.

sierpinski
        Shows a Sierpinski's triangle.

sierpinski3d
        Shows a Sierpinski's gasket.

slip    Shows slipping blits.

solitare
        Shows Klondike's game of solitare.

space   Shows a journey into deep space.

sphere  Shows a bunch of shaded spheres.

spiral  Shows a helical locus of points.

spline  Shows colorful moving splines.

sproingies
        Shows Sproingies!   Nontoxic.   Safe  for  pets  and
        small  children.   May not be available depending on
        how it was configured.

stairs  Shows Infinite Stairs, an Escher-like GL scene.  May
        not be available depending on how it was configured.

star    Shows a star field with a twist.

starfish
        Shows starfish.

strange Shows strange attractors.

superquadrics
        Shows 3D mathematical shapes.  May not be  available
        depending on how it was configured.

swarm   Shows a swarm of bees following a wasp.

swirl   Shows animated swirling patterns.

t3d     Shows a Flying Balls Clock Demo.

tetris  Shows an autoplaying tetris game.

text3d  Shows 3D moving texts.

thornbird
        Shows an animated Bird in a Thorn Bush fractal map.

tik_tak Shows rotating polygons.

triangle
        Shows a triangular mountain range.

tube    Shows an animated tube.

turtle  Shows turtle fractals.

vines   Shows fractal-like vines.

voters  Shows Dewdney's Voters.

wator   Shows  Dewdney's  Water-Torus  planet  of  fish  and
        sharks.

wire    Shows a random circuit with 2 electrons.

world   Shows spinning Earths.

worm    Shows wiggly worms.

xjack   Shows Jack having one of those days.

xcl     Shows a Control Line combat model race

blank   Shows nothing but a black screen.  Does not show  up
        in random mode.

bomb    Shows a bomb and will autologout after a time.  Does
        not  show  up  in  random  mode and may be available
        depending on how it was configured.

random  Shows a random mode from  above  except  blank  (and
        bomb).

-delay usecs
     The delay option sets the speed at which  a  mode  will
     operate.   It simply sets the number of microseconds to
     delay between batches of animations.  In blank mode, it
     is  important  to  set  this  to  some  small number of
     seconds,  because  the  keyboard  and  mouse  are  only
     checked  after  each delay, so you cannot set the delay
     too high, but a delay of zero would needlessly  consume
     cpu  checking  for  mouse and keyboard input in a tight
     loop, since blank mode has no work to do.

-count num
     The batchcount option sets number of things to  do  per
     batch to num .

     In ant mode this refers the number of ants.

     In apollonian mode it is the number of possible ways to
     imbed  circles  within  a circle, all of integer curva-
     ture.

     In atlantis mode it is the number of sharks.

     In ball mode it is the number of balls.

     In bat mode it is the number of  bats,  could  be  less
     because of conflicts.

     In blot mode this refers to the number of  pixels  ren-
     dered in the same color.

     In bouboule mode it is the number of stars.

     In bounce mode it is the number of balls, could be less
     because of conflicts.

     In braid mode it is the upper bound number of strands.

     In bubble mode it is the number of bubbles.

     In bubble3d mode it is the number of bubbles.

     In bug mode it is the number of  bugs,  could  be  less
     because of conflicts.

     In cage mode it is means nothing.

     In clock mode it is the percentage of the  screen,  but
     less than 100%.

     In coral mode it is the number of seeds.

     In crystal mode it is the number of polygons.

     In daisy mode it is the  number  flowers  that  make  a
     meadow.

     In dclock mode it means nothing.

     In deco mode it is the depth.

     In demon mode this refers the number of colors.

     In dilemma mode  this  refers  the  number  of  initial
     defectors.

     In discrete mode it is the number of points.

     In drift mode it is the number  of  levels  to  recurse
     (larger = more complex).

     In dragon mode it means nothing.

     In euler2d mode it is the number of segments.

     In eyes mode it is the number of eyes.

     In fadeplot mode it is the number of steps.

     In fire mode it is the number of fire particles (set it
     to 0 to have rain).

     In flag mode it means nothing.

     In flame mode it is the number  of  levels  to  recurse

     (larger = more complex).

     In flow mode it is the number of bees.

     In forest mode it is  the  number  trees  that  make  a
     forest.

     In galaxy mode it means the number of galaxies.

     In gears mode it is the number of degrees to rotate the
     set of gears by.

     In glplanet mode it is the number of hundredth  degrees
     to roll the planet by.

     In goop mode it is the number of blobs per plane.

     In grav mode it is the number of planets.

     In helix mode it means nothing.

     In hop mode this refers to the number  of  pixels  ren-
     dered in the same color.

     In hyper mode it the number of dimensions.

     In ico mode it is the ith platonic solid.

     In ifs mode it means nothing.

     In image mode it means it is the  number  of  logos  on
     screen at once.

     In juggle mode it is speed in milliseconds  betewwen  a
     throw and the next catch.

     In julia mode it is the depth of recursion.

     In kaleid mode it is the number of pens.

     In kumppa mode it means nothing.

     In lament mode it means nothing.

     In laser mode it is the number lasers.

     In life mode it is the number of generations  before  a
     glider is introduced.

     In life1d mode it means nothing.

     In life3d mode it is the number of generations before a

     glider is introduced.

     In lisa mode it is the number of loops.

     In lissie mode it is the number of worms.

     In loop mode it is the number of flaws.

     In mandelbrot mode it is the order.

     In marquee mode it means nothing.

     In matrix mode it means nothing.

     In maze mode it means nothing.

     In moebius mode it is means nothing.

     In molecule mode it means nothing.

     In morph3d mode it is the ith platonic solid.

     In mountain mode it is the number of mountains.

     In munch mode it means nothing.

     In noof mode it means nothing.

     In nose mode it means nothing.

     In qix mode it is the number of points.

     In pacman mode it means the number of ghosts.

     In penrose mode it means nothing.

     In petal mode it the greatest random number of petals.

     In pipes mode it shows different joints,  0  random,  1
     spherical, 2 bolted elbow, 3 elbow, and 4 alternating.

     In polyominoes mode it means nothing.

     In puzzle mode it the number of moves.

     In pyro mode it is the maximum number flying rockets at
     one time.

     In roll mode it is the number of points.

     In rotor mode it is the number of rotor  thingys  which
     whirr...

     In rubik mode it is the number of moves.

     In sballs mode it is the number of spheres.

     In scooter mode it is the number of doors.

     In shape mode it means nothing.

     In sierpinski mode it is the number of points.

     In slip mode it means nothing.

     In solitare mode it means nothing.

     In space mode it is the number of stars.

     In sphere mode it means nothing.

     In spiral mode it is the number of spirals.

     In spline mode it is the number of points "splined".

     In sproingies mode it is the number of sproingies.

     In stairs mode it is means nothing.

     In star mode it is the number of stars on the screen at
     once.

     In starfish mode it means nothing.

     In strange mode it means nothing.

     In superquadrics mode its the number of horizontal  and
     vertical lines in the superquadric.

     In swirl mode it means the number of "knots".

     In swarm mode it is the number of bees.

     In t3d mode it means nothing.

     In tetris mode it means nothing.

     In text3d mode it means nothing.

     In thornbird mode it is the number of points.

     In triangular mode it is the number of mountains.

     In tube mode it is a rectangle (= 1), an ellipse (= 2),
     or a polygon if greater.

     In turtle mode it means nothing.

     In vines mode it is draw a complete vine  (=  0)  or  a
     portion (= 1).

     In voters mode it means the number of parties, 2 or 3.

     In wator mode it means the breed time for the fish.

     In wire mode it means the length of the circuit.

     In world mode it is the number of worlds.

     In worm mode it is the number of worms.

     In xcl mode it represents the number of planes.

     In xjack mode it means nothing.

     In blank mode it means nothing.

     In bomb mode it means the number of minutes to  autolo-
     gout.

     A negative count allows for randomness.  The range from
     the  minimum allowed nonnegative count for a particular
     mode to the ABS( count ) (or maximum  allowed  count  ,
     whichever is less).

-batchcount num
     The batchcount option is depreciated but  should  still
     work as count.

-cycles num
     The cycles option sets the number of cycles until  time
     out for ant, apollonian, blot, braid, bug, clock, crys-
     tal, daisy, deco,  demon,  dilemma,  discrete,  dragon,
     eyes,  flag,  flow,  forest, galaxy, helix, hop, hyper,
     ico, laser, life, life1d, life3d, lisa,  lissie,  loop,
     mandelbrot,  mountain, petal, sierpinski, shape, spline
     +erase, t3d, thornbird, triangle, tube, voters,  wator,
     and  wire.   For  euler2d,  swarm,  and  worm it is the
     length of the lines,  for  atlantis  it  is  the  shark
     speed,  for fadeplot, julia and spiral it is the length
     of the trail of dots, munch it is the minimum  size  of
     the  squares,  for kaleid it is the % of black, for qix
     it is the number of lines, for spline -erase  it  means
     the  number  of  splines  *  64 (for compatibility with
     +erase), for gears it  is  the  number  of  degrees  to
     increment  the spin of each gear by, for glplanet it is
     the number of hundredth degrees to  rotate  the  planet
     by,  for  molecule  it  is  the  time  in seconds until

     timeout, for pipes it is the number of systems to  draw
     before  clearing the screen, for rubik it is the number
     of steps to complete a 90 move, for sballs  it  is  the
     sphere  speed  value,  for scooter it is the speed, for
     superquadrics it is the number of frames  it  takes  to
     morph  from one shape to another.  for text3d it is the
     number of times drawing a word before the next one, For
     others it means nothing.

-size num
     The size option sets the size maximum size of a star in
     bouboule,  pyro  and  star,  size  of  ball in ball and
     bounce, size of bat in bat, maximum size of  bubble  in
     bubble, size of clock in clock, minimum size of rectan-
     gles in deco, size  of  the  polygons  in  crystal  and
     tik_tak,  size  of polyhedron in ico, size of lissie in
     lissie, size of dots of flag, for kaleid it is the sym-
     metry,  width  of maze hallway, size of side of penrose
     tile, radius of loop in lisa, radius of ball  in  roll,
     number  of  corners  in  sierpinski, number of stars in
     scooter, size of tube in tube, width of worm  in  worm,
     line  width  in  rotor,  size  of  cells  in  ant, bug,
     dilemma, dragon, life, life1d, pacman, tetris,  voters,
     wator,  and wire.  In pipes it is the maximum length of
     a system.  In atlantis it is the shark size.   A  nega-
     tive number allows for randomness, similar to count. In
     fire, gears, sballs and sproingies it is  the  size  of
     the  screen,  this  is  because on many slow systems it
     runs too slow when the picture covers the full screen.

-ncolors num
     The ncolors option sets the maximum number of colors to
     be used.

-saturation value
     The saturation option sets saturation of the color ramp
     used  to  value  .  0  is  grayscale and 1 is very rich
     color.  0.4 is a nice pastel.

-erasemode modename
     As of this writing there are over 9  erase  modes  sup-
     ported  (if  its  not  chosen its assumed random).  The
     erase modes are random_lines, random_squares, venetian,
     triple_wipe, quad_wipe, circle_wipe, three_circle_wipe,
     squaretate, no_fade.

-erasedelay usecs
     The erasedelay option sets the number  of  microseconds
     for  steps  of  the  erasemode  (a setting of 0 and the
     erasemode is bypassed).

+/-nolock

     The nolock option causes xlock to only  draw  the  pat-
     terns and not lock the display.  A key press or a mouse
     click will terminate the screen saver.

-/+inwindow
     Runs xlock in a window, so that you can iconify,  move,
     or resize it and still use your screen for other stuff.
     When running in a window, xlock no  longer  locks  your
     screen, it just looks good.

-/+inroot
     Runs xlock in your  root  window.   Like  the  inwindow
     option  it  no  longer  locks the screen, it just looks
     good.

-/+remote
     The remote option tells xlock  to  not  stop  you  from
     locking remote X11 servers.  This option should be used
     with care and is intended mainly to lock X11  terminals
     which  cannot  run  xlock locally.  If you lock someone
     else's workstation, they will have to know  your  pass-
     word   to  unlock  it.   Using  +remote  overrides  any
     resource derived values for remote and  prevents  xlock
     from  being  used  to lock other X11 servers.  (Use `+'
     instead of `-' to override resources for other  options
     that can take the `+' modifier similarly.)

-/+mono
     The mono option causes  xlock  to  display  monochrome,
     (black  and  white)  pixels  rather  than  the  default
     colored ones on color displays.

-/+allowaccess
     This option is required for servers which do not  allow
     clients  to modify the host access control list.  It is
     also useful if you need to run x clients  on  a  server
     which is locked for some reason...  When allowaccess is
     true, the X11 server is left open for clients to attach
     and  thus  lowers  the  inherent  security of this lock
     screen.  A side effect of using this option is that  if
     xlock  is  killed -KILL, the access control list is not
     lost.

-vtlock modename
     This option is used on a XFree86 system  to  manage  VT
     switching in [off|noswitch|switch|restore] mode.

off       means no VT switch locking.

switch    means VT switch locking + switching  to  xlock  VT
          when activated.

restore   means VT switch locking + switching  to  xlock  VT
          when  activated  +  switching  back to previous VT
          when desactivated.

noswitch  means VT switch locking  only  when  xlock  VT  is
          active.

-/+allowroot
     The allowroot option allows the root password to unlock
     the  server as well as the user who started xlock.  May
     not be able to turn this on and off depending  on  your
     system and how xlock was configured.

-/+debug
     Allows xlock to be debugged by doing  all  but  locking
     the screen.

-/+description
     The  description  option  causes  xlock  shows  a  mode
     description  above  password window.  The default is to
     show this description.

-/+echokeys
     The echokeys option causes xlock to echo '?' characters
     for each key typed into the password prompt.  Some con-
     sider this a security risk, so the default  is  to  not
     echo anything.

-/+enablesaver
     By default xlock will disable  the  normal  X  server's
     screen  saver  since  it is in effect a replacement for
     it.  Since it is possible to set delay parameters  long
     enough  to  cause  phosphor burn on some displays, this
     option will turn back on the default screen saver which
     is very careful to keep most of the screen black.

-/+resetsaver
     By default xlock will call XResetScreenSaver.  This may
     be undesirable with DPMS monitors.

-/+grabmouse
     The grabmouse option causes xlock to grab the mouse and
     keyboard,  this is the default.  xlock can not lock the
     screen without this.

-/+grabserver
     The grabserver option causes xlock to grab the  server.
     This  is not usually needed but some unsecure X servers
     can be defeated without this.

-/+install
     Allows xlock to install its own colormap if xlock  runs

     out  of  colors.   May  not  work  on  with some window
     managers (fvwm) and does  not  work  with  the  -inroot
     option.

-/+mousemotion
     Allows you to turn on and off the  sensitivity  to  the
     mouse to bring up the password window.

-/+sound
     Allows you to turn on and off sound if  installed  with
     the capability.

-/+timeelapsed
     Allows you to find out how long a machine is locked  so
     you  can  complain  to an administrator that someone is
     hogging a machine.

-/+usefirst
     The usefirst option causes xlock to use  the  keystroke
     which got you to the password screen as the first char-
     acter in the password.  The default is  to  ignore  the
     first key pressed.

-/+verbose
     Verbose mode, tells what options it is going to use.

-nice nicelevel
     The nice option sets system nicelevel of the xlock pro-
     cess to nicelevel .

-lockdelay seconds
     The lockdelay option sets the number of seconds  before
     the  screen  needs a password to be unlocked.  Good for
     use with an autolocking mechanism like xautolock(1).

-timeout seconds
     The timeout option sets the number  of  seconds  before
     the password screen will time out.

-font fontname
     The font option sets the font to be used on the  prompt
     screen.

-planfont fontname
     option sets the font to be used for the  text  that  is
     displayed in the lower part of the password screen.

-fg color
     The fg option sets the color of the text on  the  pass-
     word screen to color .

-bg color

     The bg option sets the color of the background  on  the
     password screen to color .

-foreground color
     The foreground option sets the color of the text on the
     password screen to color .

-background color
     The background option sets the color of the  background
     on the password screen to color .

-username string
     Text string is shown in front of user name, defaults to
     "Name: ".

-password string
     Text string is the password prompt string, defaults  to
     "Password: ".

-info string
     Text string is an informational  message  to  tell  the
     user what to do, defaults to "Enter password to unlock;
     select icon to lock.".

-validate string
     Text string is a message  shown  while  validating  the
     password, defaults to "Validating login..."

-invalid string
     Text  string  is  a  message  shown  when  password  is
     invalid, defaults to "Invalid login."

-geometry geom
     The geometry option sets geom the size  and  offset  of
     the  lock  window  (normally  the  entire screen).  The
     entire screen format is still  used  for  entering  the
     password.  The purpose is to see the screen even though
     it is locked.  This should be used with  caution  since
     many of the modes will fail if the windows are far from
     square or are too small  (size  must  be  greater  than
     0x0).   This  should  also be used with -enablesaver to
     protect screen from phosphor burn.

-icongeometry geom
     The icongeometry option  sets  geom  the  size  of  the
     iconic  screen  (normally 64x64) seen when entering the
     password.  This should be used with caution since  many
     of  the  modes  will  fail  if the windows are far from
     square or are too small  (size  must  be  greater  than
     0x0).   The  greatest size is 256x256.  There should be
     some limit so  users  could  see  who  has  locked  the
     screen.  Position information of icon is ignored.

-glgeometry geom
     The glgeometry option sets geom the size of the  screen
     for gl modes.  Not normally available or needed.

-/+wireframe
     Turn on/off wireframe, available  on  atlantis,  daisy,
     fire,  gears, lament, life3d, mountain, sballs, sproin-
     gies, superquadrics, and triangle.

-/+showfps
     Turn  on/off  frame  per  sec  display,  available   on
     atlantis,  bubble3d, cage, fire, gears, invert, lament,
     moebius, morph3d, rubik, sballs, stairs, and  superqua-
     drics.

-/+fpstop
     Turn on/off frame per sec display  on  top  of  screen,
     used if showfps is on.

-fpsfont fontname
     The fpsfont option sets the font  to  be  used  in  the
     frame per sec display, used if showfps is on.

-/+use3d
     Turn on/off 3d view, available on bouboule, pyro, star,
     and worm.

-delta3d value
     Space between the center of your 2 eyes for 3d mode.

-none3d color
     Color used for empty size in 3d mode.

-right3d color
     Color used for right eye in 3d mode.

-left3d color
     Color used for left eye in 3d mode.

-both3d color
     Color used for overlapping images for  left  and  right
     eye in 3d mode.

-program programname
     The program option sets the program to be used  as  the
     fortune generator.  Currently used only for marquee and
     nose modes.

-messagesfile formatted-filename
     The messagesfile option sets the file to be used as the
     fortune  generator.   The  first entry is the number of
     fortunes, the next line  contains  the  first  fortune.

     Fortunes  begin  with  a  "%%"  on  a  line  by itself.
     Currently used only for marquee and nose modes.  If one
     exists, it takes precedence over the fortune program.

-messagefile filename
     The messagefile option sets the file whose contents are
     displayed.   Currently  used  only for marquee and nose
     modes.  If one exists, it  takes  precedence  over  the
     fortune program and messagesfile.

-message textstring
     The message option sets the text to be displayed  in  a
     mode.   Currently  used only for flag, marquee and nose
     modes.  If one exists, it  takes  precedence  over  the
     fortune program, messagesfile and message.

-messagefont fontname
     The messagefont option sets the font to be used in  the
     mode.   Currently used only for flag, marquee, and nose
     modes.

-bitmap filename
     The bitmap option sets the xbm, xpm, or ras file to  be
     displayed with flag, image, life, life1d, maze, or puz-
     zle mode.  For eyes and  pacman  only  a  xbm  file  is
     accepted.   Certain modes reject the bitmap if too big.
     /

2 MORE_OPTIONS (these may not be available)
-cpasswd crypted-password
     The cpasswd option sets the key to be this text  string
     to unlock xlock instead of password file.

-forceLogout minutes
     The forceLogout option sets minutes to auto-logout.

-logoutButtonLabel string
     Text string is a message  shown  inside  logout  button
     when logout button is displayed.  Defaults to "Logout".

-logoutButtonHelp string
     Text string is a message shown  outside  logout  button
     when  logout  button  is displayed.  Defaults to "Click
     the \"Logout\" button to log  out  current\n  user  and
     make workstation available."

-logoutFailedString string
     Text string  is  a  message  shown  when  a  logout  is
     attempted  and  fails.   Defaults  to  "Logout  attempt
     FAILED.\n  Current  user  could  not  be  automatically
     logged out."

-/+dtsaver
     Turn on/off CDE Saver Mode.  This option is only avail-
     able if CDE support was compiled in.

-modulepath path
     The modulepath option sets the directories  that  xlock
     searches  for  mode  modules  to  load.   It is a colon
     separated list of directories to  search.  If  "%S"  is
     included  in  the  path,  it is replaced by the default
     modulepath.  To add a private module directory  to  the
     default  path, use something like '%S:~/mymoduledir' as
     the path.  This option is only available if module sup-
     port was compiled in.

-locksound string
     Text string references  sound  to  use  at  lock  time.
     Default  sound,  male  voice:   "Thank  you,  for  your
     cooperation."

-infosound string
     Text string references sound to  use  for  information.
     Default sound, male voice:  "Identify please."

-validsound string
     Text string references sound  to  when  a  password  is
     valid.  Default sound, female voice:  "Complete."

-invalidsound string
     Text string references sound  to  when  a  password  is
     invalid.   Default  sound, female voice: "I am not pro-
     grammed to give you that information."

-startCmd string
     Text string command  to  execute  when  the  screen  is
     locked.  Commonly  used instructions include:  "zaway".
     This command, if still  running  when  the  screensaver
     exist, will be killed.

-endCmd string
     Text string command  to  execute  when  the  screen  is
     unlocked.

-logoutCmd string
     Text string command to execute when  the  program  logs
     the  user out (either via the autologout or by pressing
     the logout button).

-mailCmd string
     Text string command to  execute  when  the  program  to
     check mail.

-mailIcon string

     Text string of file for the "mail arrived" bitmap.

-nomailIcon string
     Text string of file for the "no mail" bitmap.

-dpmsstandby  seconds
     Allows one to  set  DPMS  Standby  for  monitor  (0  is
     defined  as  infinite).   (Horizontal sync on, Vertical
     sync off, RGB guns off, power supply on, tube filaments
     energized,   (screen  saver  mode).   Typical  17  inch
     screen...  110 out of 120 watts with a 3  sec  recovery
     time.)   This  option is only available if DPMS support
     was compiled in.

-dpmssuspend  seconds
     Allows one to  set  DPMS  Suspend  for  monitor  (0  is
     defined  as  infinite).  (Horizontal sync off, Vertical
     sync on, RGB guns off, power supply off, tube filaments
     energized.   Typical  17 inch screen ...  15 out of 120
     watts with a 3 sec recovery time.)  This option is only
     available if DPMS support was compiled in.

-dpmsoff  seconds
     Allows one to set DPMS Power  Off  for  monitor  (0  is
     defined  as  infinite).  (Horizontal sync off, Vertical
     sync off, Small auxiliary circuit stays on  to  monitor
     the HS/VS signals to enable power on when data needs to
     be displayed on the screen.  Typical 17 inch screen ...
     5  out of 120 watts with a 10 sec recovery time.)  This
     option is only available if DPMS support  was  compiled
     in.

2 SPECIAL_MODE DEPENDENT OPTIONS
-neighbors num
     The neighbors option sets the number of neighbors of  a
     cell  to  3,  4,  6,  9 (may not have real mathematical
     meaning), or 12 for several automata modes  (ant,  bug,
     demon,  dilemma, life, loop, and wire) (bug and loop do
     not span this full range).  Setting it to  0  typically
     randomizes   this,   except   where  bitmaps  are  used
     (dilemma, life, voters, and wator).

-/+eyes
     Turn on and off eyes for ant and bug.

-/+cycle
     Turn on and off colour cycling  in  crystal,  starfish,
     tetris, and tik_tak.

-/+trackmouse
     Turn on and off mouse interaction in eyes, fire, julia,

     solitare,  sballs, swarm, and tetris. For maze, pacman,
     solitare and tetris this may not be available depending
     on how xlock was configured.

-/+texture
     Turn on and off texturing in fire, lament  and  sballs.
     This  may  not  be available depending on how xlock was
     configured.

-rule S<neighborhood>/B<neighborhood>
     Allows one to set the rule for life and life3d. Special
     parameters:  P, picks a random rule from all rules that
     have known patterns; G, picks a random  rule  from  all
     rules that have known gliders.  For life a good example
     is Conway's rule which  is  S23/B3.   For  life3d  good
     examples  are  Bay's  rules  which are S45/B5, S567/B6,
     S56/B5, and S67/B67.

-lifefile filename
     The lifefile option sets the life and life3d  lifeform.
     Only  one format is currently supported, similar to the
     #P xlife format.  For life3d, 2 linefeeds in a row  are
     assumed to advance the depth.

-/+truchet
     Turn on and off Truchet lines (trail) in ant.

-/+altgeom
     Turn on and off  alternate  geometries  (off  euclidean
     space,  on  includes spherical and hyperbolic) in apol-
     lonian mode.

-/+label
     Turn on and off alternate space and number labeling  in
     apollonian mode.

-whalespeed num
     Allows one to set the speed of the whales  and  dolphin
     in atlantis.

-/+boil
     Turn on and off having the bubbles bubble up in bubble.

-nx num
     Allows one to set  the  number  of  unit  cells  in  x-
     direction in crystal.

-ny num
     Allows one to set  the  number  of  unit  cells  in  y-
     direction in crystal.

-/+centre

     Turn on and off the centering on screen in crystal.

-/+maxsize
     Turn on and off the centering on screen in crystal.

-/+cell
     Turn on and off the drawing of unit cell in crystal.

-/+grid
     Turn on and off the drwing of grid of  unit  cells  (if
     -cell is on) in crystal.

-/+garden
     Turn off and on garden look in daisy.

-/+popex
     Turn on and off the  population  explosion  counter  in
     dclock.

-/+forest
     Turn on and off the tropical deforest  (hectares/acres)
     counter in dclock.

-/+hiv
     Turn on and off the HIV infection counter in dclock.

-/+lab
     Turn on and off the Animal Research counter in dclock.

-/+veg
     Turn on and  off  the  Animal  Consumation  counter  in
     dclock.

-/+y2k
     Turn on and off the Year 2000 countdown in dclock.

-/+millennium
     Turn on and off the Second Millennium (January 1, 2001)
     countdown in dclock.

-bonus value
     Allows one to set the bonus for cheating... between 1.0
     and 4.0 in dilemma.

-/+conscious
     Turn off and on self-awareness in dilemma.

-/+grow
     Turn  on  and  off  growing  fractals  (else  they  are
     animated) for drift.

-/+liss

     Turn on and off using lissajous figures to  get  points
     for drift.

-/+fog
     Turn on and off fog for fire.

-/+shadows
     Turn on and off shadows for fire.

-trees num
     Validate the displaying of trees for  fire  if  greater
     than zero.

-/+invert
     Turn on and off inverting of the flag.

-/+tracks
     Turn on and off star tracks in galaxy.

-/+light
     Turn on and off lighting of the planet for glplanet.

-/+bounce
     Turn on and off bouncing movement  of  the  planet  for
     glplanet.

-pimage filename
     Use the named xbm or xpm file for texturing the  planet
     for  glplanet.  Use BUILTIN as filename for the builtin
     image taken from Xearth.

-/+roll
     Turn on and off rolling of the planet for glplanet.

-/+rotate
     Turn on and off rotation of the planet for glplanet.

-/+texture
     Turn on and off texturing of the planet for glplanet.

-/+stars
     Turn on and off showing stars  in  the  background  for
     glplanet.

-/+decay
     Turn on and off decaying orbits for grav.

-/+trail
     Turn on and off decaying trail of dots for grav.

-/+ellipse
     Turn on and off ellipse format in helix.

-/+martin
     Turn on and off  Barry  Martin's  square  root  hop.  -
     /+popcorn  Turn  on and off Clifford A. Pickover's pop-
     corn hop.

-/+ejk1...ejk6
     Turn on and off Ed J. Kubaitis' hops.

-/+rr
     Turn on and off Renaldo Recuerdo's hop.

-/+jong
     Turn on and off Jong's hop.

-/+sine
     Turn on and off Barry Martin's sine hop.

-pattern <pattern>
     Allows one to set the pattern for juggle.

-patterntrace num
     Allows one to see the trails for juggle.

-/+solid
     Turn off and on solid color (else its a  4  panel  look
     (half white)) for juggle.

-/+planetary
     Turn on and off planetary gears in gears.

-planetsize num
     Sets the size of the screen  for  planetary  option  in
     gears.  This is for machines with slower CPU. (Set to 0
     for full screen).

-/+disconnected
     Turn on and off disconnected pen movement in kaleid.

-/+serial
     Turn on and off  sequential  allocation  of  colors  in
     kaleid.

-/+alternate
     Turn on and off alternate rotated display mode kaleid.

-/+quad
     Turn on and off quad mirrored/rotated mode  similar  to
     size 4 in kaleid.

-/+oct
     Turn on and off oct mirrored/rotated  mode  similar  to
     size 8 in kaleid.

-/+linear
     Turn on and  off  Cartesian/Polar  coordinate  mode  in
     kaleid.

-/+callahan
     Turn on and off  Paul  Callahan's  S2b34/B2a  hexagonal
     life.

-/+andreen
     Turn on and off Bob Andreen's S2a2b4a/B2a3a4b hexagonal
     life.

-/+totalistic
     Turn on and off totalistic rules for life1d. If this is
     off  then  it  follows  rules  of  the LCAU collection.
     These rules may not be symmetric and are more general.

-/+additive
     Turn on and off additive functions mode in lisa.

-/+noants
     Turn off and on ants in moebius.

-/+solidmoebius
     Turn on and off solid Mobius strip in moebius.

-/+atoms
     Turn on and off the drawing of spheres for the atoms in
     molecule.

-/+bbox
     Turn on and off showing the molecules in a blue box  in
     molecule.

-/+bonds
     Turn on and off the drawing  of  the  atomic  bonds  in
     molecule.

-molecule filename
     Read a molecule structure from a pdb file in molecule.

-/+labels
     Turn on and off the labeling of the atoms in molecule.

-spin{x|y|z}
     Set the axis for molecule  rotation  in  molecule.  The
     default is "XYZ".

+spin
     Turn off the molecule rotation in molecule.

-/+titles

     Turn on and off the molecule description in molecule.

-/+wander
     Turn on and off the moving of the molecule on a  sinoid
     curve in molecule. Turn on and off movements in fire.

-/+ammann
     Turn on and off lines for penrose.

-increment value
     Allows fine adjustments to order in mandelbrot.

-/+erase
     Turn on and off erasing for spline. If this  option  is
     on,  cycles  is  divided by 64 to compute the number of
     lines, so as to be compatible when using -fullrandom.

-factory num
     Number of extra factory parts in pipes.

-/+fisheye
     Turn on if you want a zoomed-in view of pipes.

-/+tightturns
     Turn on if you want the pipes to bend more often.

-/+rotatepipes
     Turn on if you want the pipe system rotated in pipes.

-/+complete
     Turn on or off complete graph morphing in qix.

-size[xyz] num
     Number represents the number of cubies on the x, y,  or
     z  axis.   Negative  numbers offer randomness from 2 to
     the absolute value of the number.  star.

-/+hideshuffling
     Turn on or off hidden shuffle phase for rubik.

-/+border
     Turn on or off borders in shape.

-/+shape
     Turn on or off shadowing in shape.

-/+shape
     Turn on or off stippling in shape.

-intensity value
     Set the brightness (default  2185)  of  the  sierpinski
     structure for sierpinski3d.

-maxdepth value
     Set the maximum depth (up  to  10)  of  the  sierpinski
     structure for sierpinski3d.

-speed value
     Determines after how much steps the depth  changes  for
     sierpinski3d.

-trek num
     If its a high number you will see the  space  ship  all
     the time in star.

-/+rock
     Turn on and off rocks for star. If this is  off,  stars
     will be seen instead.

-/+straight
     Turn on if star gets you motion sick.

-cyclepeed num
     Set speed of cycling in starfish.

-rotation num
     Set rotation velocity in starfish.

-thickness num
     Set thickness in starfish.

-/+rock
     Turn on and off blob for starfish.

-spinspeed num
     Set speed of rotation, in degrees per frame for  super-
     quadrics.

-/+bonus
     Turn on in tetris to see 5 square bonus pieces.

-/+well
     Turn on in tetris to see welltris.

-ttfont filename
     Sets the True Type font file (or font  directory)  used
     for text3d

-extrusion num
     Sets length of the text extrusion for text3d

-rot_amplitude float
     Sets rotation amplitude value of each letter for text3d

-rot_frequency float

     Sets rotation frequency for text3d

-/+no_split
     Turn on and off word splitting for text3d

-ttanimate function_name
     Sets the animation function used for text3d.  Currently
     one  of  :  Random  FullRandom  Default  Default2  None
      Crazy  UpDown  Extrude  RotateXY  RotateYZ   Frequency
      Amplitude

-speed km/h
     The speed for all planes in km/h for xcl.

-frametime microseconds
     The time for one frame on the screen. This time is used
     to calculate the delay time and depends on the speed of
     the X server for xcl.

-line_length mm
     The distance between the pilot and the plane for xcl.

-spectator mm
     The distance between spectator and pilot. It should  be
     grater  than the line_length and the half wing width of
     the plane to be not dangerous  for  the  spectator  for
     xcl.

-viewmodel
     Shows an animated view of one model for xcl.

-/+oldcolor
     Sets the colors for the first two planes fixed  to  red
     and yellow in xcl.

-xcldebug
     Shows some additional timing information to  make  sure
     that the calibrate procedure goes right in xcl.

-automatic
        The auto scale for automatic fit into the window  is
        Deactivated with this option for xcl.

-randomstart
     Use a random start point for models at startup for xcl.

-duration seconds
     Allows one to set a duration  for  a  mode  in  random.
     Duration of 0 is defined as infinite.

-/+fullrandom
     Turn on/off randomness options within modes in  random.

     Not implemented for all mode options.

-modelist textstring
     Allows one to pass a list of files to randomly  display
     to random. "all" will get all files but blank (and bomb
     if  compiled  in).  "all,blank"  will  get  all  modes.
     "all,-image bounce,+blank" will get all modes but image
     and bounce.  "bug wator" will get only bug  and  wator.
     "allgl"  will  get  only  the  GL modes if compiled in,
     all-allgl will get all but the GL modes, "allnice" will
     weed  out  high cpu usage modes (as well as hackers and
     gl modes).  "allxpm" will get all modes that  use  xpm.
     "allwrite"  will  get  all modes that take advantage of
     writable colormaps (not including xpm).   "all3d"  will
     get all the modes that support this option.  "allmouse"
     will get all the modes that support mouse  interaction.
     Similarly,  "allautomata" for automata modes, "allfrac-
     tal" for  fractal  modes,  "allgeometry"  for  geometry
     modes,  "allspace"  for  space  modes.  The random mode
     itself can not be referenced.

-/+sequential
     Turn on non-random random option.

**WARNING**
xlock can appear to hang if it is  competing  with  a  high-
priority  process  for  the  CPU.  For  example, if xlock is
started after a process with  'nice  -20'  (high  priority),
xlock will take  considerable amount of time to respond.

2 SHADOW_PASSWORDS
2 If the machine is using a shadow password system, then xlock
may  not  be  set up to get the real password and so must be
given one of its own. This can  be  either  on  the  command
line,   via   the   -cpasswd   option,   or   in   the  file
$HOME/.xlockrc, with the first taking precedence.   In  both
cases  an  encrypted  password is expected (see makekey(8)).
2 If neither is given, then xlock will prompt for  a  password
and  will  use that, also storing an encrypted version of it
in $HOME/.xlockrc for future use.

2 BUGS
"kill -KILL xlock " causes the server that was locked to  be
unusable, since all hosts (including localhost) were removed
from the access control list to lock out new X clients,  and
since  xlock  could  not catch SIGKILL, it terminated before
restoring the access control list.  This will  leave  the  X
server  in  a state where "you can no longer connect to that
server, and this operation cannot  be  reversed  unless  you

reset  the server."            -From the X11R4 Xlib Documen-
tation, Chapter 7.
2 NCD terminals do not allow xlock to  remove  all  the  hosts
from  the  access  control list.  Therefore you will need to
use the "-remote" and "-allowaccess" switches.  If you  hap-
pen  to run without "-allowaccess" on an NCD terminal, xlock
will not work and you will need to reboot the  terminal,  or
simply  go into the SETUP menus, under 'Network Parameters',
and turn off TCP/IP access control.

2 SEE_ALSO
2 X(1), Xlib Documentation.

2 AUTHOR
2 Maintained by:
     David Albert Bagley, <bagleyd@tux.org>

2 The latest version is currently at:
     ftp://ftp.tux.org/pub/tux/bagleyd/xlockmore
     ftp://ftp.x.org/contrib/applications

2 Original Author:
     Patrick J. Naughton, <naughton@eng.sun.com>
     Mailstop 21-14
     Sun Microsystems Laboratories, Inc.
     Mountain View, CA  94043
     415/336-1080

with many additional contributors.

2 COPYRIGHT
2 Copyright (C) 1991 by Patrick J. Naughton
2 Copyright (C) 1993-2002 by David A. Bagley

2 Permission  to  use,  copy,  modify,  and  distribute   this
software  and  its documentation for any purpose and without
fee is hereby granted, provided  that  the  above  copyright
notice  appear  in  all  copies and that both that copyright
notice and this permission notice appear in supporting docu-
mentation.
2 The original BSD daemon is Copyright (C) 1988 Marshall  Kirk
2 McKusick.  All Rights Reserved.
2 DEC, HP, IBM, Linux, SCO, SGI,  and  Sun  icons  have  their
respective copyrights.

