3.8 Changing Window Stacking Order

To raise a window so that no sibling window obscures it, use XRaiseWindow().

To lower a window so that it does not obscure any sibling windows, use XLowerWindow().

To circulate a subwindow up or down, use XCirculateSubwindows().

To raise the lowest mapped child of a window that is partially or completely occluded by another child, use XCirculateSubwindowsUp().

To lower the highest mapped child of a window that partially or completely occludes another child, use XCirculateSubwindowsDown().

To restack a set of windows from top to bottom, use XRestackWindows().

Next: Changing Window Attributes