C++ (Cpp) ScopedComPtr::GetPath示例

WCHAR *ResolveLnk(const WCHAR * path)
{
    ScopedMem<OLECHAR> olePath(str::Dup(path));
    if (!olePath)
        return NULL;

    ScopedComPtr<IShellLink> lnk;
    HRESULT hRes = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
                                    IID_IShellLink, (LPVOID *)&lnk);
    if (FAILED(hRes))
        return NULL;

    ScopedComQIPtr<IPersistFile> file(lnk);
    if (!file)
        return NULL;

    hRes = file->Load(olePath, STGM_READ);
    if (FAILED(hRes))
        return NULL;

    hRes = lnk->Resolve(NULL, SLR_UPDATE);
    if (FAILED(hRes))
        return NULL;

    WCHAR newPath[MAX_PATH];
    hRes = lnk->GetPath(newPath, MAX_PATH, NULL, 0);
    if (FAILED(hRes))
        return NULL;

    return str::Dup(newPath);
}