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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Portions Copyright \(co 1990, 1991 by
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.\" $XFree86: xc/doc/man/X11/XQTree.man,v 1.3 2001/02/09 03:47:46 tsi Exp $
.\"
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.TH XQueryTree __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
.SH NAME
XQueryTree \- query window tree information
.SH SYNTAX
.HP
Status XQueryTree\^(\^Display *\fIdisplay\fP\^, Window \fIw\fP\^, Window
*\fIroot_return\fP\^, Window *\fIparent_return\fP\^, Window
**\fIchildren_return\fP\^, unsigned int *\fInchildren_return\fP\^);
.SH ARGUMENTS
.IP \fIchildren_return\fP 1i
Returns the list of children.
.IP \fIdisplay\fP 1i
Specifies the connection to the X server.
.IP \fInchildren_return\fP 1i
Returns the number of children.
.IP \fIparent_return\fP 1i
Returns the parent window.
.IP \fIroot_return\fP 1i
Returns the root window.
.ds Wi whose list of children, root, parent, and number of children \
you want to obtain
.IP \fIw\fP 1i
Specifies the window \*(Wi.
.SH DESCRIPTION
The
.ZN XQueryTree
function returns the root ID, the parent window ID,
a pointer to the list of children windows
(NULL when there are no children),
and the number of children in the list for the specified window.
The children are listed in current stacking order, from bottom-most
(first) to top-most (last).
.ZN XQueryTree
returns zero if it fails and nonzero if it succeeds.
To free a non-NULL children list when it is no longer needed, use
.ZN XFree .
.SH BUGS
This really should return a screen *, not a root window ID.
.SH "SEE ALSO"
XFree(3X11),
XGetWindowAttributes(3X11),
XQueryPointer(3X11)
.br
\fI\*(xL\fP