[Bug 4964] MDI child not informed of max/minimization

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4964

------- Additional Comments From [e-mail]  2006-26-05 06:27 -------
Created an attachment (id=2528)
 --> (http://bugs.winehq.org/attachment.cgi?id=2528&action=view)
Patch correcting the problem (enabled by solution of bug 4960)

This is a smaller patch dealing only with this bug's problem.
It uses the undocumented SWP flag for window state change introduced with the
solution for bug 4960. It defines it as a constant and uses it in default
window procedure's WM_WINDOWPOSCHANGED processing, to detect that a window
changed state, and send WM_SIZE in that case.
Additionally, it enhances checking for todo flag within dlls/user/tests/msg.c
test, since otherwise a message sequence marked with "todo" starts producing
errors (because currently there is no checking for todo at defwinproc flag
comparing), which it should not. In fact, the situation in the test improves:
the sequence of expected messages actually sent increases, however that leads
at coincidence at the second part of the test: 
expected 
...0x46 by defwinproc, 0x83 by defwinproc, 0x47 by defwinproc, 0x46, 0x83,
0x47;
actual
...0x46, 0x83, 0x47.
The problem is that some (defwinproc) messages are not sent, but the message
comparer in the test thinks that messages are correct, but have incorrect
sender. (A solution for this is included in the bigger patch earlier sent.)