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<BODY>
<PRE>

</PRE>
<H2>NAME</H2><PRE>
     xlock - Locks the  local  X  display  until  a  password  is
     entered.



</PRE>
<H2>SYNOPSIS</H2><PRE>
     <STRONG>xlock</STRONG> [ -<STRONG>help</STRONG> ] [ -<STRONG>version</STRONG>  ]  [  -<STRONG>resources</STRONG>  ]  [  -<STRONG>display</STRONG>
     <EM>displayname</EM>  ] [ -<STRONG>visual</STRONG> <EM>visualname</EM> ] [ -<STRONG>name</STRONG> <EM>resourcename</EM> ]
     [ -<STRONG>mode</STRONG> <EM>modename</EM> ] [ -<STRONG>delay</STRONG> <EM>usecs</EM> ] [ -<STRONG>batchcount</STRONG>  <EM>num</EM>  ]  [
     -<STRONG>count</STRONG>  <EM>num</EM> ] [ -<STRONG>cycles</STRONG> <EM>num</EM> ] [ -<STRONG>ncolors</STRONG> <EM>num</EM> ] [ -<STRONG>size</STRONG> <EM>num</EM> ]
     [ -<STRONG>saturation</STRONG> <EM>value</EM> ] [ -<STRONG>erasemode</STRONG> <EM>modename</EM> ] [  -<STRONG>erasedelay</STRONG>
     <EM>usecs</EM>  ] [ <STRONG>-/+allowaccess</STRONG> ] [ -<STRONG>vtlock</STRONG> <EM>modename</EM> ] [ <STRONG>-/+nolock</STRONG>
     ] [ <STRONG>-/+inwindow</STRONG> ] [ <STRONG>-/+inroot</STRONG> ] [ <STRONG>-/+remote</STRONG> ] [ <STRONG>-/+mono</STRONG> ]  [
     <STRONG>-/+allowroot</STRONG> ] [ <STRONG>-/+debug</STRONG> ] [ <STRONG>-/+description</STRONG> ] [ <STRONG>-/+echokeys</STRONG>
     ] [ <STRONG>-/+enablesaver</STRONG> ] [ <STRONG>-/+resetsaver</STRONG> ] [ <STRONG>-/+grabmouse</STRONG> ] [  <STRONG>-</STRONG>
     <STRONG>/+grabserver</STRONG>  ] [ <STRONG>-/+install</STRONG> ] [ <STRONG>-/+mousemotion</STRONG> ] [ <STRONG>-/+sound</STRONG>
     ] [ <STRONG>-/+timeelapsed</STRONG> ] [ <STRONG>-/+usefirst</STRONG> ] [ <STRONG>-/+verbose</STRONG> ] [  -<STRONG>nice</STRONG>
     <EM>level</EM>  ] [ -<STRONG>lockdelay</STRONG> <EM>seconds</EM> ] [ -<STRONG>timeout</STRONG> <EM>seconds</EM> ] [ -<STRONG>font</STRONG>
     <EM>fontname</EM> ] [ -<STRONG>planfont</STRONG> <EM>fontname</EM> ] [ -<STRONG>bg</STRONG> <EM>color</EM> ] [ -<STRONG>fg</STRONG>  <EM>color</EM>
     ]  [  -<STRONG>background</STRONG>  <EM>color</EM> ] [ -<STRONG>foreground</STRONG> <EM>color</EM> ] [ -<STRONG>username</STRONG>
     <EM>string</EM> ] [ -<STRONG>password</STRONG> <EM>string</EM> ] [ -<STRONG>info</STRONG> <EM>string</EM> ]  [  -<STRONG>validate</STRONG>
     <EM>string</EM>   ]  [  -<STRONG>invalid</STRONG>  <EM>string</EM>  ]  [  -<STRONG>geometry</STRONG>  <EM>geom</EM>  ]  [
     -<STRONG>icongeometry</STRONG> <EM>geom</EM> ] [ -<STRONG>glgeometry</STRONG> <EM>geom</EM> ] [ <STRONG>-/+wireframe</STRONG> ] [
     <STRONG>-/+use3d</STRONG>  ]  [ -<STRONG>delta3d</STRONG> <EM>value</EM> ] [ -<STRONG>none3d</STRONG> <EM>color</EM> ] [ -<STRONG>right3d</STRONG>
     <EM>color</EM> ] [ -<STRONG>left3d</STRONG> <EM>color</EM> ] [ -<STRONG>both3d</STRONG> <EM>color</EM> ] [ -<STRONG>program</STRONG>  <EM>pro-</EM>
     <EM>gramname</EM>  ] [ -<STRONG>messagesfile</STRONG> <EM>formatted</EM>-<EM>filename</EM> ] [ -<STRONG>message-</STRONG>
     <STRONG>file</STRONG> <EM>filename</EM> ] [ -<STRONG>message</STRONG> <EM>string</EM> ] [ -<STRONG>messagefont</STRONG>  <EM>fontname</EM>
     ] [ -<STRONG>bitmap</STRONG> <EM>filename</EM> ] [ -<STRONG>cpasswd</STRONG> <EM>crypted</EM>-<EM>password</EM> ] [ -<STRONG>for-</STRONG>
     <STRONG>ceLogout</STRONG> <EM>minutes</EM>  ]  [  -<STRONG>logoutButtonLabel</STRONG>  <EM>textstring</EM>  ]  [
     -<STRONG>logoutButtonHelp</STRONG>  <EM>textstring</EM>  ] [ -<STRONG>logoutFailedString</STRONG> <EM>text-</EM>
     <EM>string</EM> ] [ <STRONG>-/+dtsaver</STRONG> ] [ -<STRONG>modulepath</STRONG> <EM>path</EM>  ]  [  -<STRONG>locksound</STRONG>
     <EM>string</EM>  ]  [  -<STRONG>infosound</STRONG>  <EM>string</EM>  ] [ -<STRONG>validsound</STRONG> <EM>string</EM> ] [
     -<STRONG>invalidsound</STRONG> <EM>string</EM> ] [ -<STRONG>startCmd</STRONG> <EM>string</EM> ] [ -<STRONG>endCmd</STRONG> <EM>string</EM>
     ] [ -<STRONG>logoutCmd</STRONG> <EM>string</EM> ]



</PRE>
<H2>DESCRIPTION</H2><PRE>
     <STRONG>xlock</STRONG> locks the X server till the user enters their password
     at  the  keyboard.   While  <STRONG>xlock</STRONG> 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 <STRONG>xlock</STRONG>.

     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.

     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.

     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.



</PRE>
<H2>NOTE ON ETIQUETTE</H2><PRE>
     <EM>Xlock</EM> should not be used on public terminals when there is a
     high demand for them.

     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.



</PRE>
<H2>OPTIONS</H2><PRE>
     -<STRONG>help</STRONG>
          Print options and a brief description to standard  out-
          put.

     -<STRONG>version</STRONG>
          Print version number (if &gt;= 4.00) to standard output.

     -<STRONG>resources</STRONG>
          Print default resource file to standard output.

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

     -<STRONG>visual</STRONG> <EM>visualname</EM>
          <EM>visualname</EM> 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).

     -<STRONG>name</STRONG> <EM>resourcename</EM>
          <EM>resourcename</EM> is used instead of <STRONG>XLock</STRONG> when looking  for
          resources to configure <STRONG>xlock</STRONG>.

     -<STRONG>mode</STRONG> <EM>modename</EM>
          As of this writing there  are  over  90  display  modes
          supported (plus one more for random selection of one of
          these).

     <STRONG>ant</STRONG>     Shows Langton's and Turk's generalized ants.

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

     <STRONG>ball</STRONG>    Shows bouncing balls.

     <STRONG>bat</STRONG>     Shows bouncing flying bats.

     <STRONG>blot</STRONG>    Shows Rorschach's ink blot test.

     <STRONG>bouboule</STRONG>
             Shows Mimi's bouboule of moving stars.

     <STRONG>bounce</STRONG>  Shows bouncing footballs.

     <STRONG>braid</STRONG>   Shows random braids and knots.

     <STRONG>bubble</STRONG>  Shows popping bubbles.

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

     <STRONG>bug</STRONG>     Shows Palmiter's bug evolution and a garden of Eden.

     <STRONG>cartoon</STRONG> Shows  bouncing  cartoons.   May  not  be  available
             depending on how it was configured.

     <STRONG>clock</STRONG>   Shows Packard's oclock.

     <STRONG>coral</STRONG>   Shows a coral reef.

     <STRONG>crystal</STRONG> Shows polygons in 2D plane groups.

     <STRONG>daisy</STRONG>   Shows a meadow of daisies.

     <STRONG>dclock</STRONG>  Shows a floating digital clock or message.

     <STRONG>deco</STRONG>    Shows art as ugly as sin.

     <STRONG>demon</STRONG>   Shows Griffeath's cellular automata.

     <STRONG>dilemma</STRONG> Shows Lloyd's Prisoner's Dilemma simulation.

     <STRONG>discrete</STRONG>
             Shows various discrete maps.

     <STRONG>drift</STRONG>   Shows cosmic drifting flame fractals.

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

     <STRONG>eyes</STRONG>    Shows eyes following a bouncing grelb.

     <STRONG>fadeplot</STRONG>
             Shows a fading plot of sine squared.

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

     <STRONG>flame</STRONG>   Shows cosmic flame fractals.

     <STRONG>flow</STRONG>    Shows dynamic strange attractors.

     <STRONG>forest</STRONG>  Shows binary trees of a fractal forest.

     <STRONG>galaxy</STRONG>  Shows crashing spiral galaxies.

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

     <STRONG>goop</STRONG>    Shows goop from a lava lamp.

     <STRONG>grav</STRONG>    Shows orbiting planets.

     <STRONG>helix</STRONG>   Shows string art.

     <STRONG>hop</STRONG>     Shows real plane iterated fractals.

     <STRONG>hyper</STRONG>   Shows spinning n-dimensional hypercubes.

     <STRONG>ico</STRONG>     Shows a bouncing polyhedron.

     <STRONG>ifs</STRONG>     Shows a modified iterated function system.

     <STRONG>image</STRONG>   Shows randomly appearing logos.

     <STRONG>julia</STRONG>   Shows the Julia set.

     <STRONG>kaleid</STRONG>  Shows Brewster's Kaleidoscope.

     <STRONG>kummpa</STRONG>  Shows kumppa.

     <STRONG>laser</STRONG>   Shows spinning lasers.

     <STRONG>life</STRONG>    Shows Conway's game of life.

     <STRONG>life1d</STRONG>  Shows Wolfram's game of 1D life.

     <STRONG>life3d</STRONG>  Shows Bays' game of 3D life.

     <STRONG>lightning</STRONG>
             Shows Keith's fractal lightning bolts.

     <STRONG>lisa</STRONG>    Shows animated lissajous loops.

     <STRONG>lissie</STRONG>  Shows lissajous worms.

     <STRONG>loop</STRONG>    Shows Langton's self-producing loops.

     <STRONG>mandelbrot</STRONG>
             Shows mandelbrot sets.

     <STRONG>marquee</STRONG> Shows text.

     <STRONG>matrix</STRONG>  Shows the matrix.

     <STRONG>maze</STRONG>    Shows a random maze and a depth first  search  solu-
             tion.

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

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

     <STRONG>mountain</STRONG>
             Shows Papo's mountain range.

     <STRONG>munch</STRONG>   Shows munching squares.

     <STRONG>nose</STRONG>    Shows a man with a big nose runs around spewing  out
             text.

     <STRONG>pacman</STRONG>  Shows Pacman(tm).

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

     <STRONG>penrose</STRONG> Shows Penrose's quasiperiodic tilings.

     <STRONG>petal</STRONG>   Shows various GCD Flowers.

     <STRONG>puzzle</STRONG>  Shows a puzzle being scrambled and then solved.

     <STRONG>pyro</STRONG>    Shows fireworks.

     <STRONG>qix</STRONG>     Shows spinning lines a la Qix(tm).
     <STRONG>roll</STRONG>    Shows a rolling ball.

     <STRONG>rotor</STRONG>   Shows Tom's Roto-Rooter.

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

     <STRONG>shape</STRONG>   Shows stippled rectangles, ellipses, and triangles.

     <STRONG>sierpinski</STRONG>
             Shows a Sierpinski's triangle.

     <STRONG>slip</STRONG>    Shows slipping blits.

     <STRONG>sphere</STRONG>  Shows a bunch of shaded spheres.

     <STRONG>spiral</STRONG>  Shows a helical locus of points.

     <STRONG>spline</STRONG>  Shows colorful moving splines.

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

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

     <STRONG>star</STRONG>    Shows a star field with a twist.

     <STRONG>starfish</STRONG>
             Shows starfish.

     <STRONG>strange</STRONG> Shows strange attractors.

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

     <STRONG>swarm</STRONG>   Shows a swarm of bees following a wasp.

     <STRONG>swirl</STRONG>   Shows animated swirling patterns.

     <STRONG>tetris</STRONG>  Shows tetris.

     <STRONG>thornbird</STRONG>
             Shows an animated Bird in a Thorn Bush fractal map.

     <STRONG>triangle</STRONG>
             Shows a triangular mountain range.

     <STRONG>tube</STRONG>    Shows an animated tube.
     <STRONG>turtle</STRONG>  Shows turtle fractals.

     <STRONG>vines</STRONG>   Shows fractal-like vines.

     <STRONG>voters</STRONG>  Shows Dewdney's Voters.

     <STRONG>wator</STRONG>   Shows  Dewdney's  Water-Torus  planet  of  fish  and
             sharks.

     <STRONG>wire</STRONG>    Shows a random circuit with 2 electrons.

     <STRONG>world</STRONG>   Shows spinning Earths.

     <STRONG>worm</STRONG>    Shows wiggly worms.

     <STRONG>xjack</STRONG>   Shows Jack having one of those days.

     <STRONG>blank</STRONG>   Shows nothing but a black screen.  Does not show  up
             in random mode.

     <STRONG>bomb</STRONG>    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.

     <STRONG>random</STRONG>  Shows a random mode from  above  except  blank  (and
             bomb).


     -<STRONG>delay</STRONG> <EM>usecs</EM>
          The <EM>delay</EM> 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.

     -<STRONG>count</STRONG> <EM>num</EM>
          The <EM>batchcount</EM> option sets number of <EM>things</EM> to  do  per
          batch to <EM>num</EM> .

          In ant mode this refers the number of ants.

          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 cartoon mode it 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 eyes mode it is the number of eyes.

          In fadeplot mode it is the number of steps.

          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 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 julia mode it is the depth of recursion.

          In kaleid mode it is the number of pens.

          In kumppa 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 means nothing.

          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 morph3d mode it is the ith platonic solid.

          In mountain mode it is the number of mountains.

          In munch 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 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 shape mode it means nothing.

          In sierpinski mode it is the number of points.

          In slip mode it means nothing.

          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 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 blank mode it means nothing.

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

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

     -<STRONG>batchcount</STRONG> <EM>num</EM>
          The <EM>batchcount</EM> option is depreciated but  should  still
          work as <EM>count</EM>.

     -<STRONG>cycles</STRONG> <EM>num</EM>
          The <EM>cycles</EM> option sets the number of cycles until  time
          out  for  ant, blot, braid, bug, clock, crystal, daisy,
          deco,  demon,  dilemma,  discrete,  eyes,  flag,  flow,
          forest,  galaxy,  helix,  hop, hyper, ico, laser, life,
          life1d, life3d, lisa, lissie, loop,  mandelbrot,  moun-
          tain,  petal,  sierpinski, shape, spline +erase, thorn-
          bird, triangle, tube, voters,  wator,  and  wire.   For
          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  compa-
          tibility  with  +erase),  for gears it is the number of
          degrees to increment the spin  of  each  gear  by,  for
          pipes it is the number of systems to draw before clear-
          ing the screen, for rubik it is the number of steps  to
          complete  a 90 move, for superquadrics it is the number
          of frames it takes to morph from one shape to  another.
          For others it means nothing.

     -<STRONG>size</STRONG> <EM>num</EM>
          The <EM>size</EM> 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 polygon in crystal,  size  of
          polyhedron  in  ico,  size of lissie in lissie, size of
          dots of flag, for kaleid it is the symmetry,  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,  size of tube in tube, width of worm in
          worm, line width in rotor, size of cells in  ant,  bug,
          dilemma,  life,  life1d, pacman, tetris, voters, wator,
          and wire.  In pipes it is the maximum length of a  sys-
          tem.   In atlantis it is the shark size.  In sproingies
          it is the size of the screen.  A negative number allows
          for randomness, similar to <EM>count</EM>.

     -<STRONG>ncolors</STRONG> <EM>num</EM>
          The <EM>ncolors</EM> option sets the maximum number of colors to
          be used.

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

     -<STRONG>erasemode</STRONG> <EM>modename</EM>
          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.

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

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

     <STRONG>-/+inwindow</STRONG>
          Runs <STRONG>xlock</STRONG> 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, <STRONG>xlock</STRONG> no  longer  locks  your
          screen, it just looks good.

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

     <STRONG>-/+remote</STRONG>
          The <EM>remote</EM> option tells <STRONG>xlock</STRONG>  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  <STRONG>xlock</STRONG> locally.  If you lock someone
          else's workstation, they will have to know  <STRONG>your</STRONG>  pass-
          word   to  unlock  it.   Using  +<EM>remote</EM>  overrides  any
          resource derived values for <EM>remote</EM> and  prevents  <STRONG>xlock</STRONG>
          from  being  used  to lock other X11 servers.  (Use `+'
          instead of `-' to override resources for other  options
          that can take the `+' modifier similarly.)

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

     <STRONG>-/+allowaccess</STRONG>
          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 <EM>allowaccess</EM> 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
          <STRONG>xlock</STRONG>  is  killed -KILL, the access control list is not
          lost.

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

     <EM>off</EM>       means no VT switch locking.

     <EM>switch</EM>    means VT switch locking + switching  to  xlock  VT
               when activated.

     <EM>restore</EM>   means VT switch locking + switching  to  xlock  VT
               when  activated  +  switching  back to previous VT
               when desactivated.

     <EM>noswitch</EM>  means VT switch locking  only  when  xlock  VT  is
               active.

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

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

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

     <STRONG>-/+echokeys</STRONG>
          The <EM>echokeys</EM> option causes <STRONG>xlock</STRONG> 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.

     <STRONG>-/+enablesaver</STRONG>
          By default <STRONG>xlock</STRONG> 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.

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

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

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

     <STRONG>-/+install</STRONG>
          Allows <STRONG>xlock</STRONG> to install its own colormap if <STRONG>xlock</STRONG>  runs
          out  of  colors.   May  not  work  on  with some window
          managers (fvwm) and does  not  work  with  the  -inroot
          option.

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

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

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

     <STRONG>-/+usefirst</STRONG>
          The <EM>usefirst</EM> option causes <STRONG>xlock</STRONG> 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.

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

     -<STRONG>nice</STRONG> <EM>nicelevel</EM>
          The <EM>nice</EM> option sets system nicelevel of the <STRONG>xlock</STRONG> pro-
          cess to <EM>nicelevel</EM> .

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

     -<STRONG>timeout</STRONG> <EM>seconds</EM>
          The <EM>timeout</EM> option sets the number  of  <EM>seconds</EM>  before
          the password screen will time out.

     -<STRONG>font</STRONG> <EM>fontname</EM>
          The <EM>font</EM> option sets the font to be used on the  prompt
          screen.

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

     -<STRONG>fg</STRONG> <EM>color</EM>
          The <EM>fg</EM> option sets the color of the text on  the  pass-
          word screen to <EM>color</EM> .

     -<STRONG>bg</STRONG> <EM>color</EM>
          The <EM>bg</EM> option sets the color of the background  on  the
          password screen to <EM>color</EM> .

     -<STRONG>foreground</STRONG> <EM>color</EM>
          The <EM>foreground</EM> option sets the color of the text on the
          password screen to <EM>color</EM> .

     -<STRONG>background</STRONG> <EM>color</EM>
          The <EM>background</EM> option sets the color of the  background
          on the password screen to <EM>color</EM> .

     -<STRONG>username</STRONG> <EM>string</EM>
          Text <EM>string</EM> is shown in front of user name, defaults to
          "Name: ".

     -<STRONG>password</STRONG> <EM>string</EM>
          Text <EM>string</EM> is the password prompt string, defaults  to
          "Password: ".

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

     -<STRONG>validate</STRONG> <EM>string</EM>
          Text <EM>string</EM> is a message  shown  while  validating  the
          password, defaults to "Validating login..."

     -<STRONG>invalid</STRONG> <EM>string</EM>
          Text  <EM>string</EM>  is  a  message  shown  when  password  is
          invalid, defaults to "Invalid login."

     -<STRONG>geometry</STRONG> <EM>geom</EM>
          The <EM>geometry</EM> option sets <EM>geom</EM> 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.

     -<STRONG>icongeometry</STRONG> <EM>geom</EM>
          The <EM>icongeometry</EM> option  sets  <EM>geom</EM>  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.

     -<STRONG>glgeometry</STRONG> <EM>geom</EM>
          The <EM>glgeometry</EM> option sets <EM>geom</EM> the size of the  screen
          for gl modes.  Not normally available or needed.

     <STRONG>-/+wireframe</STRONG>
          Turn on/off wireframe, available  on  atlantis,  daisy,
          gears, life3d, mountain, sproingies, superquadrics, and
          triangle.

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

     -<STRONG>delta3d</STRONG> <EM>value</EM>
          Space between the center of your 2 eyes for 3d mode.

     -<STRONG>none3d</STRONG> <EM>color</EM>
          Color used for empty size in 3d mode.

     -<STRONG>right3d</STRONG> <EM>color</EM>
          Color used for right eye in 3d mode.

     -<STRONG>left3d</STRONG> <EM>color</EM>
          Color used for left eye in 3d mode.

     -<STRONG>both3d</STRONG> <EM>color</EM>
          Color used for overlapping images for  left  and  right
          eye in 3d mode.

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

     -<STRONG>messagesfile</STRONG> <EM>formatted</EM>-<EM>filename</EM>
          The <EM>messagesfile</EM> 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.

     -<STRONG>messagefile</STRONG> <EM>filename</EM>
          The <EM>messagefile</EM> 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.

     -<STRONG>message</STRONG> <EM>textstring</EM>
          The <EM>message</EM> 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.

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

     -<STRONG>bitmap</STRONG> <EM>filename</EM>
          The <EM>bitmap</EM> 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.
          /



</PRE>
<H2>MORE OPTIONS (these may not be available)</H2><PRE>
     -<STRONG>cpasswd</STRONG> <EM>crypted</EM>-<EM>password</EM>
          The <EM>cpasswd</EM> option sets the key to be this text  string
          to unlock <STRONG>xlock</STRONG> instead of password file.

     -<STRONG>forceLogout</STRONG> <EM>minutes</EM>
          The <EM>forceLogout</EM> option sets <EM>minutes</EM> to auto-logout.

     -<STRONG>logoutButtonLabel</STRONG> <EM>string</EM>
          Text <EM>string</EM> is a message  shown  inside  logout  button
          when logout button is displayed.  Defaults to "Logout".

     -<STRONG>logoutButtonHelp</STRONG> <EM>string</EM>
          Text <EM>string</EM> 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."

     -<STRONG>logoutFailedString</STRONG> <EM>string</EM>
          Text <EM>string</EM>  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."

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

     -<STRONG>modulepath</STRONG> <EM>path</EM>
          The <EM>modulepath</EM> option sets the <EM>directories</EM>  that  <STRONG>xlock</STRONG>
          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.

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

     -<STRONG>infosound</STRONG> <EM>string</EM>
          Text <EM>string</EM> references sound to  use  for  information.
          Default sound, male voice:  "Identify please."

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

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

     -<STRONG>startCmd</STRONG> <EM>string</EM>
          Text <EM>string</EM> 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.

     -<STRONG>endCmd</STRONG> <EM>string</EM>
          Text <EM>string</EM> command  to  execute  when  the  screen  is
          unlocked.

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

     -<STRONG>mailCmd</STRONG> <EM>string</EM>
          Text <EM>string</EM> command to  execute  when  the  program  to
          check mail.

     -<STRONG>mailIcon</STRONG> <EM>string</EM>
          Text <EM>string</EM> of file for the "mail arrived" bitmap.

     -<STRONG>nomailIcon</STRONG> <EM>string</EM>
          Text <EM>string</EM> of file for the "no mail" bitmap.

     <STRONG>-dpmsstandby</STRONG>  <STRONG>seconds</STRONG>
          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.

     <STRONG>-dpmssuspend</STRONG>  <STRONG>seconds</STRONG>
          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.

     <STRONG>-dpmsoff</STRONG>  <STRONG>seconds</STRONG>
          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.



</PRE>
<H2>SPECIAL MODE DEPENDENT OPTIONS</H2><PRE>
     -<STRONG>neighbors</STRONG> <EM>num</EM>
          The <EM>neighbors</EM> 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  (<EM>ant</EM>,  <EM>bug</EM>,
          <EM>demon</EM>,  <EM>dilemma</EM>, <EM>life</EM>, <EM>loop</EM>, and <EM>wire</EM>) (<EM>bug</EM> <EM>and</EM> <EM>loop</EM> do
          not span this full range).  Setting it to  0  typically
          randomizes   this,   except   where  bitmaps  are  used
          (<EM>dilemma</EM>, <EM>life</EM>, <EM>voters</EM>, and <EM>wator</EM>).

     <STRONG>-/+eyes</STRONG>
          Turn on and off eyes for <EM>ant</EM> and <EM>bug</EM>.

     <STRONG>-/+cycle</STRONG>
          Turn on and off colour cycling  in  <EM>crystal</EM>,  <EM>starfish</EM>,
          and <EM>tetris</EM>.

     <STRONG>-/+trackmouse</STRONG>
          Turn on and off mouse interaction in <EM>eyes</EM>,  <EM>julia</EM>,  and
          <EM>swarm</EM>.

     -<STRONG>rule</STRONG> <EM>S</EM>&lt;<EM>neighborhood</EM>&gt;/<EM>B</EM>&lt;<EM>neighborhood</EM>&gt;
          Allows one to set the rule for <EM>life</EM> and <EM>life3d</EM>. 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 <EM>life</EM> a good example
          is Conway's rule which  is  S23/B3.   For  <EM>life3d</EM>  good
          examples  are  Bay's  rules  which are S45/B5, S567/B6,
          S56/B5, and S67/B67.

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

     -<STRONG>whalespeed</STRONG> <EM>num</EM>
          Allows one to set the speed of the whales  and  dolphin
          in <EM>atlantis</EM>.

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

     <STRONG>-/+boil</STRONG>
          Turn on and off having the bubbles bubble up in <EM>bubble</EM>.

     -<STRONG>nx</STRONG> <EM>num</EM>
          Allows one to set  the  number  of  unit  cells  in  x-
          direction in <EM>crystal</EM>.

     -<STRONG>ny</STRONG> <EM>num</EM>
          Allows one to set  the  number  of  unit  cells  in  y-
          direction in <EM>crystal</EM>.

     <STRONG>-/+centre</STRONG>
          Turn on and off the centering on screen in <EM>crystal</EM>.

     <STRONG>-/+maxsize</STRONG>
          Turn on and off the centering on screen in <EM>crystal</EM>.

     <STRONG>-/+cell</STRONG>
          Turn on and off the drawing of unit cell in <EM>crystal</EM>.

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

     <STRONG>-/+garden</STRONG>
          Turn off and on garden look in <EM>daisy</EM>.

     <STRONG>-/+popex</STRONG>
          Turn on and off the  population  explosion  counter  in
          <EM>dclock</EM>.

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

     <STRONG>-/+hiv</STRONG>
          Turn on and off the HIV infection counter in <EM>dclock</EM>.

     <STRONG>-/+lab</STRONG>
          Turn on and off the Animal Research counter in <EM>dclock</EM>.

     <STRONG>-/+veg</STRONG>
          Turn on and  off  the  Animal  Consumation  counter  in
          <EM>dclock</EM>.

     <STRONG>-/+y2k</STRONG>
          Turn on and off the Year 2000 countdown in <EM>dclock</EM>.

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

     -<STRONG>bonus</STRONG> <EM>value</EM>
          Allows one to set the bonus for cheating... between 1.0
          and 4.0 in <EM>dilemma</EM>.

     <STRONG>-/+conscious</STRONG>
          Turn off and on self-awareness in <EM>dilemma</EM>.

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

     <STRONG>-/+liss</STRONG>
          Turn on and off using lissajous figures to  get  points
          for <EM>drift</EM>.

     <STRONG>-/+noants</STRONG>
          Turn off and on ants in <EM>moebius</EM>.

     <STRONG>-/+solidmoebius</STRONG>
          Turn on and off solid Mobius strip in <EM>moebius</EM>.

     <STRONG>-/+invert</STRONG>
          Turn on and off inverting of the <EM>flag</EM>.

     <STRONG>-/+tracks</STRONG>
          Turn on and off star tracks in <EM>galaxy</EM>.

     <STRONG>-/+decay</STRONG>
          Turn on and off decaying orbits for <EM>grav</EM>.

     <STRONG>-/+trail</STRONG>
          Turn on and off decaying trail of dots for <EM>grav</EM>.

     <STRONG>-/+ellipse</STRONG>
          Turn on and off ellipse format in <EM>helix</EM>.

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

     <STRONG>-/+ejk1...ejk6</STRONG>
          Turn on and off Ed J. Kubaitis' <EM>hops</EM>.

     <STRONG>-/+rr</STRONG>
          Turn on and off Renaldo Recuerdo's <EM>hop</EM>.

     <STRONG>-/+jong</STRONG>
          Turn on and off Jong's <EM>hop</EM>.

     <STRONG>-/+sine</STRONG>
          Turn on and off Barry Martin's sine <EM>hop</EM>.

     <STRONG>-/+disconnected</STRONG>
          Turn on and off disconnected pen movement in <EM>kaleid</EM>.

     <STRONG>-/+serial</STRONG>
          Turn on and off  sequential  allocation  of  colors  in
          <EM>kaleid</EM>.

     <STRONG>-/+alternate</STRONG>
          Turn on and off alternate rotated display mode <EM>kaleid</EM>.

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

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

     <STRONG>-/+linear</STRONG>
          Turn on and  off  Cartesian/Polar  coordinate  mode  in
          <EM>kaleid</EM>.

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

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

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

     <STRONG>-/+additive</STRONG>
          Turn on and off additive functions mode in <EM>lisa</EM>.

     <STRONG>-/+ammann</STRONG>
          Turn on and off lines for <EM>penrose</EM>.

     -<STRONG>increment</STRONG> <EM>value</EM>
          Allows fine adjustments to order in <EM>mandelbrot</EM>.

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

     -<STRONG>factory</STRONG> <EM>num</EM>
          Number of extra factory parts in <EM>pipes</EM>.

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

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

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

     <STRONG>-/+complete</STRONG>
          Turn on or off complete graph morphing in <EM>qix</EM>.

     -<STRONG>size[xyz]</STRONG> <EM>num</EM>
          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.  <EM>star</EM>.

     <STRONG>-/+hideshuffling</STRONG>
          Turn on or off hidden shuffle phase for <EM>rubik</EM>.

     <STRONG>-/+border</STRONG>
          Turn on or off borders in <EM>shape</EM>.

     <STRONG>-/+</STRONG><EM>shape</EM>
          Turn on or off shadowing in <EM>shape</EM>.

     <STRONG>-/+</STRONG><EM>shape</EM>
          Turn on or off stippling in <EM>shape</EM>.

     -<STRONG>trek</STRONG> <EM>num</EM>
          If its a high number you will see the  space  ship  all
          the time in <EM>star</EM>.

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

     <STRONG>-/+straight</STRONG>
          Turn on if <EM>star</EM> gets you motion sick.

     -<STRONG>cyclepeed</STRONG> <EM>num</EM>
          Set speed of cycling in <EM>starfish</EM>.

     -<STRONG>rotation</STRONG> <EM>num</EM>
          Set rotation velocity in <EM>starfish</EM>.

     -<STRONG>thickness</STRONG> <EM>num</EM>
          Set thickness in <EM>starfish</EM>.

     <STRONG>-/+rock</STRONG>
          Turn on and off blob for <EM>starfish</EM>.

     -<STRONG>spinspeed</STRONG> <EM>num</EM>
          Set speed of rotation, in degrees per frame for  <EM>super-</EM>
          <EM>quadrics</EM>.

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

     <STRONG>-/+fullrandom</STRONG>
          Turn on/off randomness options within modes in  <EM>random</EM>.
          Not implemented for all mode options.

     -<STRONG>modelist</STRONG> <EM>textstring</EM>
          Allows one to pass a list of files to randomly  display
          to <EM>random</EM>. "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,
          "allfractal"  for  fractal  modes,  "allgeometry"   for
          geometry modes, "allspace" for space modes.  The random
          mode itself can not be referenced.

     <STRONG>-/+sequential</STRONG>
          Turn on non-random <EM>random</EM> option.



</PRE>
<H2>**WARNING**</H2><PRE>
     <STRONG>xlock</STRONG> can appear to hang if it is  competing  with  a  high-
     priority  process  for  the  CPU.  For  example, if <STRONG>xlock</STRONG> is
     started after a process with  'nice  -20'  (high  priority),
     <STRONG>xlock</STRONG> will take  considerable amount of time to respond.



</PRE>
<H2>SHADOW PASSWORDS</H2><PRE>
     If the machine is using a shadow password system, then <STRONG>xlock</STRONG>
     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   <STRONG>-cpasswd</STRONG>   option,   or   in   the  file
     <STRONG>$HOME/.xlockrc</STRONG>, with the first taking precedence.   In  both
     cases  an  encrypted  password is expected (see makekey(8)).
     If neither is given, then <STRONG>xlock</STRONG> will prompt for  a  password
     and  will  use that, also storing an encrypted version of it
     in <STRONG>$HOME/.xlockrc</STRONG> for future use.



</PRE>
<H2>BUGS</H2><PRE>
     "kill -KILL <STRONG>xlock</STRONG> " 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  <STRONG>xlock</STRONG>  could  not catch SIGKILL, it terminated before
     restoring the access control list.  This will  leave  the  X
     server  in  a state where "<EM>you</EM> <EM>can</EM> <EM>no</EM> <EM>longer</EM> <EM>connect</EM> <EM>to</EM> <EM>that</EM>
     <EM>server</EM>, <EM>and</EM> <EM>this</EM> <EM>operation</EM> <EM>cannot</EM>  <EM>be</EM>  <EM>reversed</EM>  <EM>unless</EM>  <EM>you</EM>
     <EM>reset</EM>  <EM>the</EM> <EM>server</EM>."            -From the X11R4 Xlib Documen-
     tation, Chapter 7.
     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, <STRONG>xlock</STRONG>
     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.


</PRE>
<H2>SEE ALSO</H2><PRE>
     X(1), Xlib Documentation.



</PRE>
<H2>AUTHOR</H2><PRE>
     Maintained by:
          David Albert Bagley, &lt;<EM>bagleyd</EM>@<EM>tux</EM>.<EM>org</EM>&gt;

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

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

     with many additional contributors.



</PRE>
<H2>COPYRIGHT</H2><PRE>
     Copyright (c) 1988-91 by Patrick J. Naughton
     Copyright (c) 1993-98 by David A. Bagley

     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.
     The original BSD daemon is Copyright (c) 1988 Marshall  Kirk
     McKusick.  All Rights Reserved.
     DEC, HP, IBM, Linux, SCO, SGI,  and  Sun  icons  have  their
     respective copyrights.
























</PRE>
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