DragDropHandlers IShellExtInit::Initialize and NETHOOD UNC paths

Question

I have a shell extension registered under HKCR\Folder\shellex\DragDropHandlers and I need to call GetVolumePathName()+GetVolumeInformation() on the target folder (PIDL passed to you in IShellExtInit::Initialize)

The problem is that when something is dropped on a "Nethood shortcut" (My Network Places\sharename) the PIDL passed to Initialize refers to the Nethood shortcut and not the UNC path! (Calling SHGetPathFromIDList on the PIDL returns "%USERPROFILE%\NetHood\SHARE on MACHINE" and not "\\MACHINE\SHARE" like you would expect)

I also tried creating a IShellItem of the PIDL and calling IShellItem::GetDisplayName with various SIGDN values but none of them return the UNC path.

How can I get the UNC path from this PIDL?

Answer 1

// error checking omitted
IShellFolder* pFolder = NULL;
LPCITEMIDLIST pidlChild = NULL;
hr = SHBindToParent(pidl, IID_IShellFolder, (void**)&pFolder, &pidlChild);
SFGAOF Attributes = SFGAO_LINK;
hr = pFolder->GetAttributesOf(1, &pidlChild, &Attributes);
if(Attributes & SFGAO_LINK)
{
    // item is a link; get it's target path
    IShellLink* pLink = NULL;
    hr = pFolder->GetUIObjectOf(NULL, 1, &pidlChild, IID_IShellLink, NULL, (void**)&pLink);
    TCHAR szPath[MAX_PATH];
    hr = pLink->GetPath(szPath, MAX_PATH, NULL, 0); // szPath now contains path of UNC share
    pLink->Release();
    pLink = NULL;
}
pFolder->Release();
pFolder = NULL;