Groups search result 1 for RegCreateKeyEx "parameter undocumented"

From: Niels Hede Pedersen (nhede@get2net.dk)                 Search Result 1
Subject: Re: What kind of class string does ::RegCreateKeyEx
want?
Newsgroups: microsoft.public.vc.mfc
Date:      View: (This is the only article in this thread) | Original Format
1999/01/23

Hi Will

The purpose of the 'Class' parameter has puzzled me as well; anyway I
think you can ignore it by simply specifying a NULL pointer for this
parameter (or try it out). My guess is that this parameter has to do
with COM, and is only relevant for keys under HKEY CLASSES ROOT. I know
positively that it will work if you specify any odd string for that
parameter, like "Why is this parameter undocumented ?"

regards

Niels
Will Pittenger wrote in message <36A7822E.94101C58@infogenic.net>...
    I am attempting to write a call to ::RegCreateKeyEx.  However, I do
not understand what it wants for the third parameter (a LPTSTR listed in
the help file as "lpClass").  The only description that I can find for
it is that Windows ignores the class string if the key already exists.
    What is the class string used for?  Do I need to specify it?  Is it
interpreted somehow?

    The reason that I am attempting to use ::RegCreateKeyEx instead of
the CWinApp INI/registry functions is that the CWinApp functions do not
appear to support subkeys under the main application key.  Also, I do
not see a way to control whether I would be accessing the
HKEY LOCAL MACHINE or HKEY CURRENT USER branch.