Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!ora!bloom-beacon!dont-send-mail-to-path-lines
From: bill@cosi.UUCP
Newsgroups: comp.windows.x
Subject: XGrabPointer behavior
Message-ID: <9102051838.AA01400@cosi.UUCP>
Date: 5 Feb 91 23:38:16 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 21

I am trying to write a client which does the following:

1) Grabs the pointer, and allows the user to draw a rubber box on the
root window.  The boundary of the box is determined by using button
press/release events to determine where opposite corners are.

2) Once this box is defined, my program grabs the image within the box
(XGetImage) for further processing.

The second part is easy.  The first part is giving me a headache.
The program I am working with currently displays a dummy window (which
I would like to get rid of), then does a XGrabPointer and follows the
motion events, drawing/redrawing the rubber box as appropriate.  This
seems to work OK.  However, despite the fact that I've done a pointer
grab, the button press events are lost unless the pointer is in the
client's dummy window.  Am I misunderstanding the function of XGrabPointer,
or am I missing something more subtle?

Also - for my education, I would like to see the source to xwd, but I don't
know where to get it.  Can anyone tell me where to look that doesn't require
ftp?