Well, as the function is called "EnumResource" it shows you what resources are available, not their contents.
And as already mentioned, a resource can be more than just shared folders but also printers, scanners, etc.
Those resources simply do not have any uniform contents to report back. That's why to get information below the resource level, you have to use methods unique to that resource type. For folders and files, this is then findfirst/findnext, which of course doesn't make any sense on a networked printer or scanner, there you would have to use a method appropriate for that resource, like retrieving printer capabilities, etc...
Ralf