magnifier.1

在Linux下实现magnification功能

./" 
./"  Copyright (C) 2006  IBM Corp.
./"
./"  GNU Free Documentation License (GFDL)
./"  http://opensource.org/
./" 
./"  GNOME Magnifier
./" 
./"  file: magnifier.1.man
./" 
./"  George Kraft <[e-mail]>
./" 
.TH "magnifier" 1 
.SH NAME
magnifier \- GNOME Magnifier (gnome-mag)
.SH SYNOPSIS
.B magnifier
[-vhmif?] [-t|--target-display STRING]
[-s|--source-display STRING] [--cursor-set=STRING] [--cursor-size=INT]
[--cursor-scale-factor=FLOAT] [--cursor-color=LONG] [-v|--vertical]
[-h|--horizontal] [-m|--mouse-follow] [-r|--refresh-time INT]
[--mouse-latency=INT] [-z|--zoom-factor FLOAT] [-i|--invert-image]
[--no-initial-region] [--timing-iterations=INT] [--timing-output]
[--timing-pan-rate=INT] [--timing-delta-x=INT] [--timing-delta-y=INT]
[--smoothing-type=STRING] [-f|--fullscreen] [--smooth-scrolling]
[-b|--border-size INT] [-c|--border-color LONG] [--use-test-pattern]
[--override-redirect] [--ignore-damage]
[-?|--help] [--usage]
.SH AVAILABILITY
The GNOME magnifier (gnome-mag) provides a command-line interface for 
standalone use, although its primary goal is to provide a set of 
magnification services for use by other client applications and assistive 
technologies, like Gnopernicus, Orca or LSR.
.P
This magnifier is compatible with operating systems using X Window System,
although the magnifier will have a better performance and functionality when
the Damage and Fixes extensions are present.
.SH DESCRIPTION
A desktop screen magnifier.  If present, the Region Of Interest (ROI)
for the magnifier can be driven by a screen reader via the 
Assistive Technology Service Provider Interface (ATSPI); otherwise,
the magnifier will be centered to the pointer position.
.SH OPTIONS
.TP
.B \-t, \--target-display=STRING
specify display on which to show magnified view
.TP
.B \-s, \--source-display=STRING
specify display to magnify
.TP
.B \--cursor-set=STRING
cursor set to use in target display
.TP
.B \--cursor-size=INT
cursor size to use (overrides cursor-scale-factor)
.TP
.B \--cursor-scale-factor=FLOAT
cursor scale factor
.TP
.B \--cursor-color=LONG
cursor color (applied to 'black' pixels
.TP
.B \-v, \-vertical
split screen vertically (if target display = source display)
.TP
.B \-h, \--horizontal                
split screen horizontally (if target display = source display)
.TP
.B \-m, \--mouse-follow              
track mouse movements
.TP
.B \-r, \--refresh-time=INT          
minimum refresh time for idle, in ms
.TP
.B \--mouse-latency=INT             
maximum mouse latency time, in ms
.TP
.B \-z, \--zoom-factor=FLOAT         
zoom (scale) factor used to magnify source display
.TP
.B \-i, --invert-image              
invert the image colormap
.TP
.B \--no-initial-region             
don't create an initial zoom region
.TP
.B \--timing-iterations=INT         
iterations to run timing benchmark test (0=continuous)
.TP
.B \--timing-output                 
display performance ouput
.TP
.B \--timing-pan-rate=INT           
timing pan rate in lines per frame
.TP
.B \--timing-delta-x=INT            
pixels to pan in x-dimension each frame in timing update test
.TP
.B \--timing-delta-y=INT            
pixels to pan in y-dimension each frame in timing update test
.TP
.B \--smoothing-type=STRING         
image smoothing algorithm to apply (bilinear-interpolation | none)
.TP
.B \-f, \\--fullscreen                
fullscreen magnification, covers entire target display 
[REQUIRES \--source-display and --target-display]
.TP
.B \--smooth-scrolling              
use smooth scrolling
.TP
.B \-b, \--border-size=INT           
width of border
.TP
.B \-c, \--border-color=LONG         
border color specified as (A)RGB 23-bit value, Alpha-MSB
.TP
.B \--use-test-pattern              
use test pattern as source
.TP
.B \--override-redirect             
make the magnifier window totally unmanaged by the window manager
.TP
.B \--ignore-damage                 
ignore the X server DAMAGE extension, if present
.TP
.B \-?, \--help
command line help
.TP
.B \--usage
command line synopsis
.SH FILES
.TP
.B /usr/share/gnome-mag/1_32/*.xpm
.TP
.B /usr/lib/bonobo/servers/GNOME_Magnifier.server
.TP
.B /usr/lib/libgnome-mag.so.2
.SH BUGS
See
.I http://bugs.gnome.org
.SH AUTHORS
.TP
Erwann Chenede <[e-mail]>
.TP
Bill Haneman <[e-mail]>
.SH LICENSE
Licensed under the GNU Lesser Public License (LGPL) v2.1
.SH "SEE ALSO"
.I gnopernicus(1), 
.I orca(1), 
.I lsr(1),
Bonobo, Assistive Technology Service Provider Interface (AT-SPI)