Path: utzoo!attcan!uunet!samsung!sol.ctr.columbia.edu!lll-winken!sun-barr!newstop!texsun!texbell!vector!egsner!ntpal!amy
From: amy@ntpal.UUCP (Dana Amy)
Newsgroups: comp.windows.x
Subject: Window's absolute position
Keywords: position, x, y, absolute
Message-ID: <485@ntpal.UUCP>
Date: 14 Jun 90 16:49:34 GMT
Organization: Bell Northern Research, Inc., Richardson, TX
Lines: 60


   I am a beginning X-programmer, and I need to find the absolute
position of a newly created window.  I have a sneaking suspicion
that there is a simple, straightforward method for this, but I have
been unable to discover it.

   My first thought was to traverse the window's ancestorial tree 
and add up all of the x,y offsets:


Widget       window, toplevel;
Window       win, win_root, win_parent;
Display      *disp;
Status       rc;
int          x, y, win_x, win_y, *win_kids, nkids;
unsigned int win_w, win_h, win_border_w, win_depth;

x = 0;
y = 0;

win = XtWindow(window);
root = RootWindowOfScreen(XtScreen(toplevel));
disp = XtDisplay(toplevel);

/* Loop through all windows until the root window is reached */
while (win != root) {
   /* Add the x,y offset of the current window */
   rc = XGetGeometry(disp, win, &win_root, &win_x, &win_y, &win_w, &win_h,
                     &win_border_w, &win_depth);
   x += win_x + win_border_w;
   y += win_y + win_border_w;

   /* Find the parent of the current window */
   rc = XQueryTree(disp, win, &win_root, &win_parent, &win_kids, &nkids);
   XFree(win_kids);
   win = win_parent;
}
   /* Add the x,y offset of the root window */
   rc = XGetGeometry(disp, win, &win_root, &win_x, &win_y, &win_w, &win_h,
                     &win_border_w, &win_depth);
   x += win_x + win_border_w;
   y += win_y + win_border_w;


but while the other information returned by XGetGeometry looks valid,
the win_x and win_y values are ALWAYS 0.  The window opens up in the
middle of the screen.  What is going on?  Is it possible for the 
display to be offset???

I am using X11R4 on a Sun Sparc.

Please e-mail responses if possible.  I will summarize if enough
interest is shown in this problem.

Thank you in advance!
-- 
Dana Amy                     |  "A rock pile ceases to be a rock pile
amy%ntpal@egsner.cirr.com    |  the moment a single man contemplates it,
ntpal!amy@egsner.cirr.com    |  bearing within him the image of a cathedral."
...!texbell!egsner!ntpal!amy |  - Antoine de Saint-Exupery