Newsgroups: comp.windows.x
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!mintaka!bloom-beacon!dont-send-mail-to-path-lines
From: pete@iris49.biosym.COM (Pete Ware)
Subject: Re: How do I make a cross-hair cursor in X windows?
Message-ID: <9105290033.AA01592@iris49.biosym.com>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
References: <1359@sol.deakin.OZ.AU>
Date: 29 May 91 00:33:37 GMT
Lines: 15

Basically, create a tall, narrow window with save-under set and move that to
follow the mouse.

A reasonable way to do this is to write your own composite widget that
understands how to layout your series of graphs.  Then include a
resource that indicates where the vertical cursor should be placed and
possiblly another resource if it should be displayed.  This composite
widget can then insure the "vertical cursor" window is properly placed
above all the others.

You can even implement the "vertical cursor" as a widget which
simplifies setting things such as color.

--pete