cw_handle_header_msg():
The behavior of the HDN_ENDTRACK notification has changed slightly on
Vista. HDM_GETITEMRECT, when used while handling HDN_ENDTRACK, returns
the item extents that were there prior to the user starting the resizing
operation. Earlier it would return the extents that resulted from the
resizing operation.
This resulted in a visual update problem on Windows Vista/2008
in the NIM Advanced View.
ticket: 5605
tags: pullup
git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@20570
dc483132-0cff-0310-8789-
dd5450dbe970