http://bugs.winehq.org/show_bug.cgi?id=13661
--- Comment #3 from Bob Smith bsmith@sudleyplace.com 2008-06-03 16:34:25 --- (In reply to comment #1)
Do you have a testcase showing this?
Are you saying that Ctrl-Home and Ctrl-End already move the caret to the start/end of the buffer in your Edit Controls?