1) When you click and drag on an Xwindow to move it, you only see the bits
and pieces of the "rubber band" outline which happen to overlap the other
Xwindows. Where the rubber band overlaps Windows windows, you see nothing.
It seems that outline is drawn on Root window and this patch creates only
window region for top leve X windows (child of root), so 1) occur.
I don't know how to solve it.
2) Now that there is no root window, you can't use the XWindows window
manager's root-window menus.
How about "CreateRectRgn (0, 0, 4, 4)" in winUpdateRgn(WindowPtr pWin)
instead of "CreateRectRgn (0, 0, 0, 0)"?
It makes small top left area of root window visible.
We should be able to move the area if possible. With WMaker for
instance, by default, there is a big icon on the top left.