XQueryTree(3X11) MIT X11R4 XQueryTree(3X11)
Name
XQueryTree - query window tree information
Syntax
Status XQueryTree(display, w, root_return, parent_return, children_return, nchildren_return)
Display *display;
Window w;
Window *root_return;
Window *parent_return;
Window **children_return;
unsigned int *nchildren_return;
Arguments
children_return
Returns a pointer to 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 function returns the root ID, the parent window ID, a pointer to the list of children windows, and the number of children in the list
for the specified window. The children are listed in current stacking order, from bottommost (first) to topmost (last). returns zero if
it fails and nonzero if it succeeds. To free this list when it is no longer needed, use
Restrictions
This really should return a screen *, not a root window ID.
See Also
XFree(3X11), XGetWindowAttributes(3X11), XQueryPointer(3X11)
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XQueryTree(3X11)