/// <summary>
/// Enumerates the property set format identifiers (FMTID) of the storage.
/// </summary>
/// <returns>A list of guids.</returns>
public IEnumerable <Guid> EnumerateFormats()
{
var guid = typeof(IPropertySetStorage).GUID;
var mode = GetMode(IsReadOnly);
var hr = StgOpenStorageEx(FilePath, mode, STGFMT.STGFMT_ANY, 0, IntPtr.Zero, IntPtr.Zero, ref guid, out var propertySetStorage);
if (hr == STG_E_FILENOTFOUND || hr == STG_E_PATHNOTFOUND)
{
throw new FileNotFoundException(null, FilePath);
}
if (hr != 0)
{
throw new Win32Exception((int)hr);
}
try
{
propertySetStorage.Enum(out var es);
if (es != null)
{
try
{
var stg = new STATPROPSETSTG();
int fetched;
do
{
hr = es.Next(1, ref stg, out fetched);
if (hr != 0 && hr != 1)
{
throw new Win32Exception((int)hr);
}
if (fetched == 1)
{
if (stg.fmtid == Guid.Empty)
{
continue;
}
yield return(stg.fmtid);
}
}while (fetched == 1);
}
finally
{
Marshal.ReleaseComObject(es);
}
}
}
finally
{
if (propertySetStorage != null)
{
Marshal.ReleaseComObject(propertySetStorage);
}
}
}
void IPropertyStorage.Stat(
out STATPROPSETSTG pstatpsstg
)
{
_unsafePropertyStorage.Stat(
out pstatpsstg
);
}
void IPropertyStorage.Stat(
out STATPROPSETSTG pstatpsstg
)
{
SecurityHelper.DemandCompoundFileIOPermission();
_unsafePropertyStorage.Stat(
out pstatpsstg
);
}
IEnumSTATPROPSETSTG.Next(
UInt32 celt,
STATPROPSETSTG rgelt,
out UInt32 pceltFetched
)
{
return(_unsafeEnumSTATPROPSETSTG.Next(
celt,
rgelt,
out pceltFetched
));
}
IEnumSTATPROPSETSTG.Next(
UInt32 celt,
STATPROPSETSTG rgelt,
out UInt32 pceltFetched
)
{
SecurityHelper.DemandCompoundFileIOPermission();
return(_unsafeEnumSTATPROPSETSTG.Next(
celt,
rgelt,
out pceltFetched
));
}
IEnumSTATPROPSETSTG.Next(
UInt32 celt,
STATPROPSETSTG rgelt,
out UInt32 pceltFetched
)
{
SecurityHelper.DemandCompoundFileIOPermission();
return _unsafeEnumSTATPROPSETSTG.Next(
celt,
rgelt,
out pceltFetched
);
}
void IPropertyStorage.Stat(
out STATPROPSETSTG pstatpsstg
)
{
SecurityHelper.DemandCompoundFileIOPermission();
_unsafePropertyStorage.Stat(
out pstatpsstg
);
}
internal VersionInformationPropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
internal MechanicalModelingPropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
internal ExtendedSummaryInformationPropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
internal SolidEdgePropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
