<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On May 15, 2011, at 6:05 PM, Wenhan Gu wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Maybe you can see this: <a href="http://amnoid.de/tmp/clangtut/tut.html">http://amnoid.de/tmp/clangtut/tut.html</a>, although it is something out-of-date.</blockquote><br>I wouldn't suggest it. It's far better to look directly at the Action interface and its subclasses, and follow those with your own subclass.</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>- Doug</div><br></body></html>