[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]  2006-20-04 10:59 -------
Created an attachment (id=2311)
 --> (http://bugs.winehq.org/attachment.cgi?id=2311&action=view)
Testcase as patch-addition to dlls/user/tests/msg.c test

I created a testcase within wine testing system.
Since the current error is most easily detected by
seeing that some messages are not sent, and since
the problem is MDI-related, I wrote the test as
additional code lines in dlls/user/tests/msg.c,
the test_mdi_messages() subtest.
The test passes OK on Windows (I have W2000),
but fails with Wine, since position changing messages
are not sent after WM_MDIMAXIMIZE.