Codejock Developer Community : Purpose of afx_msg keyword? http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 09 Jun 2026 16:41:39 +0000 Tue, 18 Aug 2009 06:59:56 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=14988 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Purpose of afx_msg keyword? : Thanks! I&#039;ve been looking...]]> http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52113&title=purpose-of-afx-msg-keyword#52113 Author: znakeeye
Subject: 14988
Posted: 18 August 2009 at 6:59am

Thanks! I've been looking for that article! :D
 
Finally I got the answer to why command-handlers are not simply virtual member functions:
"Due to the large number of messages involved, providing a separate virtual function for each Windows message results in a prohibitively large vtable."
]]> Tue, 18 Aug 2009 06:59:56 +0000 http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52113&title=purpose-of-afx-msg-keyword#52113 <![CDATA[Purpose of afx_msg keyword? : ClassWizard requires that you...]]> http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52074&title=purpose-of-afx-msg-keyword#52074 Author: ABuenger
Subject: 14988
Posted: 17 August 2009 at 11:19am

ClassWizard requires that you use the afx_msg keyword in your message map handler declarations.

http://msdn.microsoft.com/en-us/library/0812b0wa(VS.80).aspx

]]> Mon, 17 Aug 2009 11:19:16 +0000 http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52074&title=purpose-of-afx-msg-keyword#52074 <![CDATA[Purpose of afx_msg keyword? : What&#039;s the purpose of afx_msg? E.g....]]> http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52071&title=purpose-of-afx-msg-keyword#52071 Author: znakeeye
Subject: 14988
Posted: 17 August 2009 at 10:48am

What's the purpose of afx_msg?
 
E.g.
afx_msg void OnPaint();
 
Is it merely there to make it easier for VC++ to add message-handlers? Is it even needed in VC++ 2008?
]]> Mon, 17 Aug 2009 10:48:19 +0000 http://forum.codejock.com/forum_posts.asp?TID=14988&PID=52071&title=purpose-of-afx-msg-keyword#52071