[Bug 4960] MDI children not positioned correctly because of invisible parent

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4960

------- Additional Comments From [e-mail]  2006-16-05 11:21 -------
Created an attachment (id=2475)
 --> (http://bugs.winehq.org/attachment.cgi?id=2475&action=view)
A tentative patch with work in progress

Please try the attached patch. Although it doesn't make all the tests pass
and makes some existing tests fail it should improve the things. I'm still
working on it.