Codejock Developer Community : HashKey() in XTPMacros.h causes problems http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 09 Apr 2026 14:02:13 +0000 Thu, 02 May 2013 00:00:41 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=21619 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[HashKey() in XTPMacros.h causes problems : HashKey() inXTPMacros.hmayoverrideMFC&#039;s...]]> http://forum.codejock.com/forum_posts.asp?TID=21619&PID=70893&title=hashkey-in-xtpmacros-h-causes-problems#70893 Author: scotia
Subject: 21619
Posted: 02 May 2013 at 12:00am

HashKey() in XTPMacros.h may override MFC's HashKey() but it generates hash value in a different way from MFC. That means you cannot pass a CMap created in a DLL linked with ToolKitPro to the other DLL not linked with ToolKitPro. I don't know why we need the HashKey() in XTPMacros.h while there is one in MFC. Please remove the HashKey() in XTPMacros.h.

In XTPMacros.h:
template<> AFX_INLINE UINT AFXAPI HashKey<UINT_PTR>(UINT_PTR key) {
return (DWORD)(((DWORD_PTR)key)>>4);
}

In MFC:
AFX_INLINE UINT AFXAPI HashKey(ARG_KEY key)
{
// (algorithm copied from STL hash in xfunctional)
ldiv_t HashVal = ldiv((long)(ARG_KEY)key, 127773);
HashVal.rem = 16807 * HashVal.rem - 2836 * HashVal.quot;
if (HashVal.rem < 0)
HashVal.rem += 2147483647;
return ((UINT)HashVal.rem);
}

]]> Thu, 02 May 2013 00:00:41 +0000 http://forum.codejock.com/forum_posts.asp?TID=21619&PID=70893&title=hashkey-in-xtpmacros-h-causes-problems#70893