🚀 go-pugleaf

--- "Ambiel.Terry" <Terry.Ambiel@IGT.com> wrote:
> I am trying to access Author specifically.

There is no way you can access that particular property without opening the
file.  What you're asking for requires you to obtain the file's Summary
Information, as per the following articles:

    Structured Storage Serialized Property Set Format

http://msdn.microsoft.com/library/en-us/stg/stg/structured_storage_serialized_property_set_format.asp

    Properties and Property Sets

http://msdn.microsoft.com/library/en-us/stg/stg/properties_and_property_sets.asp

    The Summary Information Property Set

http://msdn.microsoft.com/library/en-us/stg/stg/the_summary_information_property_set.asp


For example (untested, and this only works under Windows 2K and XP):

    #include <objbase.h>
    #include <utilcls.h>

    TComInterface<IPropertySetStorage> pss;

    HRESULT hRes = StgOpenStorageEx(WideString("c:\\somefile.ext"),
STGM_READ, STGFMT_FILE, 0, NULL, NULL, IID_IPropertySetStorage,
(LPVOID*)&pss);
    if( SUCCEEDED(hRes) )
    {
        TComInterface<IPropertyStorage> ps;

        hRes = pss->Open(FMTID_SummaryInformation, STGM_READ, &ps);
        if( SUCCEEDED(hRes) )
        {
            PROPSPEC rgspec = {PRSPEC_PROPID, PIDSI_AUTHOR};
            PROPVARIANT rgvar;

            hRes = ps->ReadMultiple(1, &rgspec, &rgvar);
            if( SUCCEEDED(hRes) )
            {
                // rgvar.pszVal contains the author, use as needed
                ShowMessage(rgvar.pszVal);
                PropVariantClear(&rgvar);
            }
        }
    }


Gambit