RegQueryValueEx problem with w95 and 98 in VC++

[Chillakane]

I have a problem where the registry function, RegQueryValueEx, will not return a success on windows 95 and 98 but executes fine on 2000 and NT4.

The error code that is returned is 0 (i.e no error with formatmessage fcn) on 95 and 98, but the strange thing is that the condition I set "if (RegQueryValueEx(etc...) != ERROR_SUCCESS)" is being stepped into. So clearly there is an error!

Here's the type of thing I am doing:

if (RegQueryValueEx(hKey, "", NULL, NULL, (unsigned char *)cValue, (unsigned long *)&lSize)!=ERROR_SUCCESS)...

I want the 'cValue' (path to a particular executable) which works fine in NT4 and 2000. RegOpenKeyEx was called with the KEY_QUERY_ALL mask as required. We have this working fine in VB 6.0 but no luck here.

Help!

 

[stephfox]

I just had a similar problem. Check the value returned by RegQueryValueEx. The formatmessage function doesn't work too well with 95/98. The message I received said the operation completed successfully but the error function was being stepped into as well. So I set the RegOpenKeyEx to equal some integer. When I got the value from that, which in my case was '2'. I opened the winerror.h file and looked through until I found my value, 2L. This stated that the path couldn't be found. I had put a slash at the end of my path and it worked in NT but wouldn't work in 95. Hope this helps.