DISPLAY
to get the default host and display number.
zoom1
Wander around magified desktop
Usage
zoom [-display
host:display.screen]
[-foreground
color]
[-background
color]
[-window]
[-root]
[-mono]
[-install]
[-visual
visual]
[-delay
usecs]
[-lenses]
[-pixwidth
pixels]
[-pixheight
pixels]
[-pixspacex
pixels]
[-pixspacey
pixels]
[-lensoffsetx
pixels]
[-lensoffsety
pixels]
Overview
The zoom program takes an image, magnifies it, and scrolls around it, fatbits-style.
The image that it manipulates will be grabbed from the portion of the screen underlying the window, or from the system's video input, or from a random file on disk, as indicated by the grabDesktopImages, grabVideoFrames, and chooseRandomImages options in the ~/.xscreensaver file; see xscreensaver-demo(1) for more details.
Options
zoom accepts the following options:
-
-window -
Draw on a newly-created window. This is the default.
-
-root -
Draw on the root window.
-
-mono -
If on a color display, pretend we're on a monochrome display.
-
-install -
Install a private colormap for the window.
-
-visual visual -
Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
-
-delay microseconds -
Slow it down.
-
-lenses -
Instead of doing magnification we just copy an offset region from the original image. If lensoffsetx < pixwidth (and similarly for Y) then consecutive regions will overlap, giving the effect of looking through an array of lenses.
-
-pixwidth pixels -
Width of the magnified pixels.
-
-pixheight pixels -
Height of the magnified pixels.
-
-pixspacex pixels -
Amount of black space between magnified pixels (X direction).
-
-pixspacey pixels -
Amount of black space between magnified pixels (Y direction).
-
-lensoffsetx pixels -
Distance in X direction between consective copied regions (only effective when -lenses used).
-
-lensoffsety pixels -
Distance in Y direction between consective copied regions (only effective when -lenses used).
Environment
-
XENVIRONMENT -
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.