C++ - getting null values in value read from registry

Question

My application properly reads and writes to the registry. Now, I need to read a registry value from:

HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography\\Machi         


        

Answer 1

You have built targeting Unicode and so the registry API is returning UTF-16 Unicode text. Instead of char use wchar_t and remember that each wchar_t element is 2 bytes wide.

Do also make sure that you account for the returned string not being null-terminated, as described in the documentation. You must take account of the value returned in dwBufSize.