-.TH XScreenSaver 1 "16-May-97" "X Version 11"
+.TH XScreenSaver 1 "24-Nov-97" "X Version 11"
.SH NAME
blitspin - rotate a bitmap in an interesting way
.SH SYNOPSIS
.B blitspin
-[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-bitmap \fIfilename\fP] [\-delay \fIusecs\fP] [\-delay2 \fIusecs\fP]
+[\-display \fIhost:display.screen\fP]
+[\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root]
+[\-mono] [\-install] [\-visual \fIvisual\fP] [\-bitmap \fIfilename\fP]
+[\-delay \fIusecs\fP] [\-delay2 \fIusecs\fP]
.SH DESCRIPTION
The \fIblitspin\fP program repeatedly rotates a bitmap by 90 degrees by
using logical operations: the bitmap is divided into quadrants, and the
.TP 8
.B \-grab\-screen
If this option is specified, then the image which is spun will be grabbed
-from the portion of the screen underlying the blitspin window.
+from the portion of the screen underlying the blitspin window, or from
+the system's video input, or from a random file on disk, as indicated by
+the \fIgrabDesktopImages\fP, \fIgrabVideoFrames\fP,
+and \fIchooseRandomImages\fP options in the \fI~/.xscreensaver\fP file;
+see
+.BR xscreensaver-demo (1)
+for more details.
.PP
.TP 8
-.B \-delay microseconds
+.B \-delay \fImicroseconds\fP
How long to delay between steps of the rotation process, in microseconds.
Default is 500000, one-half second.
.PP
.TP 8
-.B \-delay2 microseconds
+.B \-delay2 \fImicroseconds\fP
How long to delay between each 90-degree rotation, in microseconds.
Default is 500000, one-half second.
.B DISPLAY
stored in the RESOURCE_MANAGER property.
.SH SEE ALSO
.BR X (1),
-.BR xscreensaver (1)
+.BR xscreensaver (1),
+.BR xscreensaver-demo (1),
+.BR xscreensaver-getimage (1)
.SH COPYRIGHT
-Copyright \(co 1992, 1993, 1997 by Jamie Zawinski.
+Copyright \(co 1992, 1993, 1997, 2001 by Jamie Zawinski.
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that copyright
representations are made about the suitability of this software for any
purpose. It is provided "as is" without express or implied warranty.
.SH AUTHOR
-Jamie Zawinski <jwz@netscape.com>, 17-aug-92.
+Jamie Zawinski <jwz@jwz.org>, 17-aug-92.
Based on SmallTalk code which appeared in the August 1981 issue of Byte
magazine.