XQueryTree(3X11) XLIB FUNCTIONS XQueryTree(3X11)NAME
XQueryTree - query window tree information
SYNTAX
Status XQueryTree(Display *display, Window w, Window *root_return, Window *parent_return, Window **children_return, unsigned int *nchil-
dren_return);
ARGUMENTS
children_return
Returns the list of children.
display Specifies the connection to the X server.
nchildren_return
Returns the number of children.
parent_return
Returns the parent window.
root_return
Returns the root window. you want to obtain
w Specifies the window whose list of children, root, parent, and number of children.
DESCRIPTION
The XQueryTree function returns the root ID, the parent window ID, a pointer to the list of children windows (NULL when there are no chil-
dren), 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). 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 XFree.
BUGS
This really should return a screen *, not a root window ID.
SEE ALSO XFree(3X11), XGetWindowAttributes(3X11), XQueryPointer(3X11)
Xlib - C Language X Interface
XFree86 Version 4.7.0 XQueryTree(3X11)
Check Out this Related Man Page
XQueryTree(3) XLIB FUNCTIONS XQueryTree(3)NAME
XQueryTree - query window tree information
SYNTAX
Status XQueryTree(Display *display, Window w, Window *root_return, Window *parent_return, Window **children_return, unsigned int *nchil-
dren_return);
ARGUMENTS
children_return
Returns the list of children.
display Specifies the connection to the X server.
nchildren_return
Returns the number of children.
parent_return
Returns the parent window.
root_return
Returns the root window.
w Specifies the window whose list of children, root, parent, and number of children you want to obtain.
DESCRIPTION
The XQueryTree function returns the root ID, the parent window ID, a pointer to the list of children windows (NULL when there are no chil-
dren), 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). 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 XFree.
BUGS
This really should return a screen *, not a root window ID.
SEE ALSO XFree(3X11), XGetWindowAttributes(3X11), XQueryPointer(3X11)
Xlib - C Language X Interface
X Version 11 libX11 1.2.1 XQueryTree(3)
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