SHGetFolderPath undeclared identifier

I am having some difficulty getting the path to a users 'My Documents'. I have tried several ways but this seems to be the closest to succeeding (only 1 error.) I assumed that I had included the correct headers but I get an undeclared identifier. I would greatly appreciate some help to get me back on track.

Code:

---

        char * szPath[MAX_PATH];
        // From MSDN
        // CSIDL_PERSONAL  or  L"::{450d8fba-ad25-11d0-98a8-0800361b1103}"
        if (( SHGetFolderPath( hwnd, CSIDL_PERSONAL , NULL, 0, szPath ) ) )
        {
                // do something usefull...
        }

---

error C2065: 'SHGetFolderPath' : undeclared identifier

#define _WIN32_IE 0x0500 (0x0400 for MinGW) prior to #including shlobj.h

If you still get the same error you are probably using msvc6 out of the box and should get the latest platform sdk from microsoft.

For future reference it's always useful with 'undeclared identifier' errors to search the relevant header file for the function in question, firstly to ensure it is actually declared and secondly to see if any preprocessor conditionals are required to use it.

Hope that helps. :)

Thank you for the reply Ken. I will file this away for future reference I appreciate the educational reply.