[Bug 3651] no caret drawn in mdi child window

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=3651

------- Additional Comments From [e-mail]  2005-24-10 14:05 -------
Created an attachment (id=1231)
 --> (http://bugs.winehq.org/attachment.cgi?id=1231&action=view)
source

source from petzold (chap18), mdidemo.
but modified to display a caret in the hello child window.
(WM_SETFOCUS and WM_KILLFOCUS messages added).