git.hungrycats.org Git - xscreensaver/blob - local/man/cat.1/decayscreen.1

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   4 XScreenSaver(1)                                   XScreenSaver(1)
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   7 N\bNA\bAM\bME\bE
   8        decayscreen - make a screen meltdown.
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  10 S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
  11        d\bde\bec\bca\bay\bys\bsc\bcr\bre\bee\ben\bn   [-display   _\bh_\bo_\bs_\bt_\b:_\bd_\bi_\bs_\bp_\bl_\ba_\by_\b._\bs_\bc_\br_\be_\be_\bn]   [-window]
  12        [-root] [-mono] [-install] [-visual _\bv_\bi_\bs_\bu_\ba_\bl] [-delay _\bu_\bs_\be_\bc_\bs]
  13        [-mode _\bm_\bo_\bd_\be]
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  15 D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
  16        The  _\bd_\be_\bc_\ba_\by_\bs_\bc_\br_\be_\be_\bn  program creates a melting effect by ran-
  17        domly shifting rectangles around the screen.
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  19 O\bOP\bPT\bTI\bIO\bON\bNS\bS
  20        _\bd_\be_\bc_\ba_\by_\bs_\bc_\br_\be_\be_\bn accepts the following options:
  21
  22        -\b-w\bwi\bin\bnd\bdo\bow\bw Draw on  a  newly-created  window.   This  is  the
  23                default.
  24
  25        -\b-r\bro\boo\bot\bt   Draw on the root window.
  26
  27        -\b-m\bmo\bon\bno\bo   If   on  a  color  display,  pretend  we're  on  a
  28                monochrome display.
  29
  30        -\b-i\bin\bns\bst\bta\bal\bll\bl
  31                Install a private colormap for the window.
  32
  33        -\b-v\bvi\bis\bsu\bua\bal\bl _\bv_\bi_\bs_\bu_\ba_\bl
  34                Specify which visual to use.  Legal values are the
  35                name  of a visual class, or the id number (decimal
  36                or hex) of a specific visual.
  37
  38        -\b-d\bde\bel\bla\bay\by _\bm_\bi_\bc_\br_\bo_\bs_\be_\bc_\bo_\bn_\bd_\bs
  39                Slow it down.
  40
  41        -\b-m\bmo\bod\bde\be _\bm_\bo_\bd_\be
  42                The direction in which the image  should  tend  to
  43                slide.   Legal  values  are  _\br_\ba_\bn_\bd_\bo_\bm  (meaning pick
  44                one), _\bu_\bp, _\bl_\be_\bf_\bt,  _\br_\bi_\bg_\bh_\bt,  _\bd_\bo_\bw_\bn,  _\bu_\bp_\bl_\be_\bf_\bt,  _\bd_\bo_\bw_\bn_\bl_\be_\bf_\bt,
  45                _\bu_\bp_\br_\bi_\bg_\bh_\bt,  _\bd_\bo_\bw_\bn_\br_\bi_\bg_\bh_\bt,  _\bs_\bh_\bu_\bf_\bf_\bl_\be  (meaning  perfer no
  46                particular direction),  _\bi_\bn  (meaning  move  things
  47                toward  the center), _\bo_\bu_\bt (meaning move things away
  48                from the  center),  _\bm_\be_\bl_\bt  (meaning  melt  straight
  49                downward), and _\bs_\bt_\br_\be_\bt_\bc_\bh (meaning stretch the screen
  50                downward).
  51
  52 R\bRE\bES\bSO\bOU\bUR\bRC\bCE\bES\bS
  53        On some systems (currently, only SGIs), this program  can,
  54        instead of grabbing a desktop image, grab a frame of video
  55        from an external camera and manipulate that instead.   The
  56        following resources control that.
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  58
  59        g\bgr\bra\bab\bbV\bVi\bid\bde\beo\boP\bPr\bro\bob\bba\bab\bbi\bil\bli\bit\bty\by (Float)
  60                What portion of the time to grab video rather than
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  64 X Version 11               05-Apr-1999                          1
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  70 XScreenSaver(1)                                   XScreenSaver(1)
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  72
  73                a screen image, between 0.0 and 1.0.  Defaults  to
  74                0.5, or half the time.
  75
  76        v\bvi\bid\bde\beo\boD\bDe\bev\bvi\bic\bce\be (Integer)
  77                The  number  of  the default video input device to
  78                check first.  If unspecified, the  default  camera
  79                (from videopanel(1)) will be checked first.  After
  80                that, all other available video input devices will
  81                be checked in order.
  82
  83                The  first  one  which  produces a non-black image
  84                will be used.  If all images are black, the others
  85                will  be  re-checked  a few times before giving up
  86                and falling back  to  simply  grabbing  a  desktop
  87                image  (but note that this takes a few seconds, so
  88                if you  don't  actually  have  any  video  sources
  89                hooked  up,  you should consider turning off video
  90                grabbing by setting g\bgr\bra\bab\bbV\bVi\bid\bde\beo\boP\bPr\bro\bob\bba\bab\bbi\bil\bli\bit\bty\by to  0.0.)
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  92        v\bvi\bid\bde\beo\boG\bGa\bai\bin\bn (Float)
  93                The amount by which to brighten the grabbed image.
  94                This defaults to 2.2.
  95
  96 E\bEN\bNV\bVI\bIR\bRO\bON\bNM\bME\bEN\bNT\bT
  97        D\bDI\bIS\bSP\bPL\bLA\bAY\bY to get the default host and display number.
  98
  99        X\bXE\bEN\bNV\bVI\bIR\bRO\bON\bNM\bME\bEN\bNT\bT
 100                to get the name of a resource file that  overrides
 101                the  global  resources stored in the RESOURCE_MAN-
 102                AGER property.
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 104 S\bSE\bEE\bE A\bAL\bLS\bSO\bO
 105        X(1), xscreensaver(1)
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 107 C\bCO\bOP\bPY\bYR\bRI\bIG\bGH\bHT\bT
 108        Copyright 1992 by Vivek Khera.  Permission to  use,  copy,
 109        modify,  distribute,  and sell this software and its docu-
 110        mentation for any purpose is hereby granted  without  fee,
 111        provided  that  the  above  copyright notice appear in all
 112        copies and that both that copyright notice and  this  per-
 113        mission  notice  appear  in  supporting documentation.  No
 114        representations are made about  the  suitability  of  this
 115        software  for any purpose.  It is provided "as is" without
 116        express or implied warranty.
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 118 A\bAU\bUT\bTH\bHO\bOR\bR
 119        Vivek Khera <khera@cs.duke.edu>, 05-Aug-93; based on  code
 120        by  David  Wald, 1988.  Modified by jwz, 28-Nov-97.  Modi-
 121        fied by Rick Schultz <rick@skapunx.net> 05-Apr-1999.
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 130 X Version 11               05-Apr-1999                          2
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