since maybe...

commit ead04f8f
Author: Philipp Lohmann [pl] <Philipp.Lohmann@Sun.COM>
Date:   Fri Dec 3 16:21:36 2010 +0100

    vcl118: #i115905# improved clip region interface on SAL layer (part 1, windows implementation)

Change-Id: Iaeb49b60f70a9f595b67c7eb307a2e90b58d7150