internal static STATPROPSETSTG GetStatistics(this IPropertyStorage propertyStorage)
{
STATPROPSETSTG statpropsetstg = default(STATPROPSETSTG);
propertyStorage.Stat(out statpropsetstg);
return(statpropsetstg);
}
internal PropertySet(STATPROPSETSTG stat, Property[] properties)
{
if (properties == null)
{
throw new ArgumentNullException("properties");
}
_stat = stat;
_properties.AddRange(properties);
}
internal static PropertySet InvokeInternalConstructor(Type type, STATPROPSETSTG stat, Property[] properties)
{
Type[] types = new[] { typeof(STATPROPSETSTG), typeof(Property[]) };
ConstructorInfo ctor = type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, types, null);
if (ctor != null)
{
return((PropertySet)ctor.Invoke(new object[] { stat, properties }));
}
else
{
throw new System.Reflection.TargetException(String.Format("Unable for find appropriate constructor for type '{0}'", type.FullName));
}
}
internal SummaryInformationPropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
internal CustomPropertySet(STATPROPSETSTG stat, Property[] properties)
: base(stat, properties)
{
}
private void LoadPropertySets()
{
HRESULT hr = (int)HRESULT.E_FAIL;
IEnumSTATPROPSETSTG enumerator = null;
STATPROPSETSTG[] stat = new STATPROPSETSTG[1];
uint fetched = 0;
List <Guid> fmtids = new List <Guid>();
// Build list of FMTID's.
try
{
if (NativeMethods.Succeeded(hr = _propertySetStorage.Enum(out enumerator)))
{
while (NativeMethods.Succeeded(hr = (enumerator.Next(1, stat, out fetched))) && (fetched == 1))
{
fmtids.Add(stat[0].fmtid);
}
// IPropertySetStorage.Enum() does not enumerate FMTID_UserDefinedProperties.
// Note that FMTID_UserDefinedProperties may not exist.
fmtids.Add(FormatId.UserDefinedProperties);
}
foreach (Guid fmtid in fmtids)
{
Guid rfmtid = fmtid;
uint grfMode = (uint)(STGM.READ | STGM.SHARE_EXCLUSIVE);
//uint grfMode = (uint)(STGM.DIRECT | STGM.READ | STGM.SHARE_DENY_WRITE);
IPropertyStorage propertyStorage = null;
try
{
if (NativeMethods.Succeeded(hr = _propertySetStorage.Open(ref rfmtid, grfMode, out propertyStorage)))
{
_propertySets.Add(PropertySet.FromIPropertyStorage(propertyStorage));
}
}
catch
{
#if DEBUG
System.Diagnostics.Debugger.Break();
#endif
}
finally
{
if (propertyStorage != null)
{
propertyStorage.FinalRelease();
}
}
}
}
catch
{
}
finally
{
if (enumerator != null)
{
enumerator.FinalRelease();
}
}
}