xwatchwin allows you to peek at a window on another X server.

To use it, you must specify the display name of the machine you want
to watch, then the name of the window on that machine.
Xwatchwin will attempt to connect with the X server
hostname:0.0, and if successful, will try to retrieve a copy of
the window in which you specified interest.

Obtained from:	NetBSD

x11/Makefile

@@ -108,6 +108,7 @@
     SUBDIR += xtermset
     SUBDIR += xtestpicture
     SUBDIR += xtoolwait
+    SUBDIR += xwatchwin
     SUBDIR += xwit
     SUBDIR += xzoom
 

x11/xwatchwin/Makefile

@@ -0,0 +1,21 @@
+# New ports collection makefile for:	xwatchwin
+# Date created:		1 Sep 2000
+# Whom:			Kris Kennaway <kris@FreeBSD.org>
+#
+# $FreeBSD$
+
+PORTNAME=	xwatchwin
+PORTVERSION=	1.1.1
+CATEGORIES=	x11
+MASTER_SITES=	${MASTER_SITE_XCONTRIB}
+MASTER_SITE_SUBDIR=	utilities
+DISTNAME=	xwatchwin
+EXTRACT_SUFX=	.tar.Z
+
+MAINTAINER=	ports@FreeBSD.org
+
+MAN1=		xwatchwin.1
+
+USE_X_PREFIX=	yes
+
+.include <bsd.port.mk>

x11/xwatchwin/distinfo

@@ -0,0 +1 @@
+MD5 (xwatchwin.tar.Z) = 0bee8ca04f11ef3fafc8f34f7a1ed0de

x11/xwatchwin/pkg-comment

@@ -0,0 +1 @@
+Watch a window on another X server

x11/xwatchwin/pkg-descr

@@ -0,0 +1,23 @@
+xwatchwin allows you to peek at a window on another X server. 
+To use it, you must specify the display name of the machine you want
+to watch, then the name of the window on that machine. 
+Xwatchwin will attempt to connect with the X server
+hostname:0.0, and if successful, will try to retrieve a copy of
+the window in which you specified interest.
+
+You may specify the window you want to watch either by name or by its
+window id, usually a hexidecimal number.  Usually specifying the
+window by name is simpler, although not all windows have names
+associated with them; in that case you must use the window id option.
+
+If the window you want to watch is not in a viewable state,
+xwatchwin will tell you so and exit.  If while you are watching
+a window it becomes 'unviewable', xwatchwin will wait until the
+window becomes 'viewable' again.
+
+xwatchwin was written as an aid to a class for people learning
+to use X.  The idea is that the instructor would type into an xterm
+window on his/her display and the students would use xwatchwin
+to see what the instructor typed.  The students could then type the
+same thing in their own terminal windows.  Hopefully others will find
+equally (if not more) constructive uses.

x11/xwatchwin/pkg-plist

@@ -0,0 +1 @@
+bin/xwatchwin