64bit Windows registry read 1

[Bryan - Gendev]

In my apps up to now I have used
Registry Read by Jim Osieczonek

see

http://www.tek-tips.com/faqs.cfm?fid=4674

Is this still OK for a 64bit system or is there a better way?

If so is there example code?

Thanks

GenDev

 

[Olaf Doschke]

There is a difference, see here:

http://msdn.microsoft.com/en-us/library/ms724072(VS.85).aspx

But as far as I understand this has no impact, if you want to read keys you wrote yourself, they are not in the 64 bit registry.

If you want access to some registry key of windows or another 64 bit application.

Why don't you try? Or have you tried and if so, what happened?

In the code of faq184-4674, you should change this section:

nErrCode = RegOpenKey(nKey, cSubKey, @nKeyHandle)
        * If the error code isn't 0, then the key doesn't exist or can't be opened.
        IF (nErrCode # 0) THEN
            SET STEP ON
            RETURN ""
        ENDIF

This will suspend and start the debugger, if RegOpenKey() returns an error.

Note: MSDN says RegOpenKey is for compatibility with 16 bit apps. It might be time to migrate to usage of RegOpenKeyEx.

Even the registry.vcx of VFP in Home()+"FFC" does use RegOpenKey and not RegOPenKeyEx. I haven't loked into the FFC version of VFPX at

http://vfpx.codeplex.com/wikipage?title=FFC

You might also simply use the wscript.shell object as demonstrated here:

http://fox.wikis.com/wc.dll?Wiki~UseOfRegistry

Sorry, no time to create fully functional sample code. I also don't have a 64 bit Win7 installed. Maybe someone else will go for that.

Bye, Olaf.