xeyes - a follow the mouse X demo
Xeyes watches what you do and reports to the Boss.
-fg foreground color\fB choose a different color for the pupil of the eyes.
-bg background color\fB choose a different color for the background.
-outline outline color\fB choose a different color for the outline of the eyes.
-center center color\fB choose a different color for the center of the eyes.
-backing { WhenMapped Always NotUseful }\fB selects an appropriate level of backing store.
-geometry geometry\fB define the initial window geometry; see X(7).
-display display\fB specify the display to use; see X(7).
-bd border color\fB choose a different color for the window border.
-bw border width\fB choose a different width for the window border.
-shape uses the SHAPE extension to shape the window. This is the default.
\+shape disables use of the SHAPE extension to shape the window.
-render uses Xrender to draw anti-aliased eyes. This is the default if xeyes has been compiled with Xrender support.
\+render disables Xrender and draws traditional eyes.
-distance uses an alternative mapping, as if the eyes were set back from the screen, thus following the mouse more precisely.
X(7), X Toolkit documentation
See X(7) for a full statement of rights and permissions.
Keith Packard, MIT X Consortium
Copied from the NeWS version written (apparently) by Jeremy Huxtable as seen at SIGGRAPH '88