spotlight man page

spotlight — move spotlight around desktop

Synopsis

spotlight [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-delay usecs] [-duration secs] [-radius pixels] [-fps]

Description

The spotlight program takes an image and exposes small sections of it as if through a wandering spotlight beam.

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

spotlight 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.

-duration seconds

How long to run before loading a new image.  Default 120 seconds.

-radius pixels

Radius of the spotlight in pixels.

-fps

Display the current frame rate and CPU load.

Environment

DISPLAY

to get the default host and display number.

XENVIRONMENT

to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

See Also

X(1), xscreensaver(1), xscreensaver-demo(1), xscreensaver-getimage(1)

Credits

Hacked together by Rick Schultz <rick@skapunx.net>, based on StefView for BackSpace by Darcy Brockbank and on several other xscreensaver hacks.

Info

5.36-4.fc26 (10-Feb-2017) X Version 11 XScreenSaver manual