@param c The connection
@param window The \a window to query.
@return A cookie
Gets the root window ID, parent window ID and list of children windows for the
specified \a window. The children are listed in bottom-to-top stacking order.
This form can be used only if the request will cause
a reply to be generated. Any returned error will be
placed in the event queue.
@brief query the window tree
@param c The connection @param window The \a window to query. @return A cookie
Gets the root window ID, parent window ID and list of children windows for the specified \a window. The children are listed in bottom-to-top stacking order.
This form can be used only if the request will cause a reply to be generated. Any returned error will be placed in the event queue.