When run, xteevee picks a mode to display from the available options. If modes are explicitly set on the command-line, they override the implicit options and will be chosen among exclusively. If modes are explicitly excluded from the command-line, the they are simply removed from contention.

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.

See also xanalogtv(1) for a more sophisticated (but more graphics-intensive) implementation of this concept.

-window

Draw on a newly-created window. This is the default.

-root

Draw on the root window.

-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.

-cycle

Cycle through all the available modes. This is the default.

-no-cycle

Don't cycle modes.

-static

Explicitly select the "static" mode.

-no-static

Explicitly forbid the "static" mode.

-roll

Explicitly select the "vertical roll" mode.

-no-roll

Explicitly forbid the "vertical roll" mode.

-bars

Explicitly select the "color bars" mode.

-no-bars

Explicitly forbid the "color bars" mode.

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.

static, roll and bars are booleans, defining which modes are to be implicitly available if xteevee is run without command-line mode selections. cycle is a boolean, defining if xteevee should cycle through each available mode or pick one and stick with it. delayMode and delayBetween are integers, defining how long each mode should be displayed and how long the time between them should be if cycle is on. staticSignal is an integer, defining the strength of the signal during the "static" mode, as a percentage.