magnifier(1)                General Commands Manual               magnifier(1)

       magnifier - GNOME Magnifier (gnome-mag)

       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]

       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.

       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.

       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.

       -t, --target-display=STRING
              specify display on which to show magnified view

       -s, --source-display=STRING
              specify display to magnify

              cursor set to use in target display

              cursor size to use (overrides cursor-scale-factor)

              cursor scale factor

              cursor color (applied to 'black' pixels

       -v, -vertical
              split screen vertically (if target display = source display)

       -h, --horizontal
              split screen horizontally (if target display = source display)

       -m, --mouse-follow
              track mouse movements

       -r, --refresh-time=INT
              minimum refresh time for idle, in ms

              maximum mouse latency time, in ms

       -z, --zoom-factor=FLOAT
              zoom (scale) factor used to magnify source display

       -i, --invert-image
              invert the image colormap

              don't create an initial zoom region

              iterations to run timing benchmark test (0=continuous)

              display performance ouput

              timing pan rate in lines per frame

              pixels to pan in x-dimension each frame in timing update test

              pixels to pan in y-dimension each frame in timing update test

              image smoothing algorithm to apply (bilinear-interpolation |

       -f, --fullscreen
              fullscreen magnification, covers entire target display [REQUIRES
              --source-display and --target-display]

              use smooth scrolling

       -b, --border-size=INT
              width of border

       -c, --border-color=LONG
              border color specified as (A)RGB 23-bit value, Alpha-MSB

              use test pattern as source

              make the magnifier window totally unmanaged by the window

              ignore the X server DAMAGE extension, if present

       -?, --help
              command line help

              command line synopsis





       Erwann Chenede <>

       Bill Haneman <>

       Licensed under the GNU Lesser Public License (LGPL) v2.1

       gnopernicus(1), orca(1), lsr(1), Bonobo, Assistive Technology Service
       Provider Interface (AT-SPI)