Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!zephyr.ens.tek.com!tektronix!percy!data!kend
From: kend@data.UUCP (Ken Dickey)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Good hash function on window handle?
Message-ID: <488@data.UUCP>
Date: 8 May 91 20:31:31 GMT
References: <24607@well.sf.ca.us>
Distribution: comp
Organization: Microcosm, Beaverton, OR
Lines: 14
CC: al@well.sf.ca.us

al@well.sf.ca.us (Alfred Fontes) writes:

>Has anybody come up with an exceptionally good hash function for a table
>keyed on the handle returned by CreateWindow()?

I suggest that instead of putting the handle in a table, you put the
table in the handle.

[i.e. use the cbWndExtra bytes and {Set,Get}WindowLong() to
save/restore an index or data handle.  Then use the window handle
itself to get to your info.]


-Ken Dickey				kend@data.uucp