internal static int GetPropertyValue(this IPropertySetStorage propertySetStorage, Guid fmtid, uint propid, out PROPVARIANT propvar)
{
HRESULT hr = (int)HRESULT.E_FAIL;
propvar = default(PROPVARIANT);
PROPSPEC[] propspec = new PROPSPEC[1];
PROPVARIANT[] propvars = { propvar };
IPropertyStorage propertyStorage = null;
uint grfMode = (uint)(STGM.READ | STGM.SHARE_EXCLUSIVE);
try
{
if (NativeMethods.Succeeded(hr = propertySetStorage.Open(ref fmtid, grfMode, out propertyStorage)))
{
hr = propertyStorage.GetProperty(propid, out propvar);
}
}
catch
{
}
finally
{
if (propertyStorage != null)
{
propertyStorage.FinalRelease();
}
}
return(hr);
}
internal static int GetProperty(this IPropertyStorage propertyStorage, uint propid, out PROPVARIANT propvar)
{
HRESULT hr = (int)HRESULT.E_FAIL;
propvar = default(PROPVARIANT);
PROPSPEC[] propspec = new PROPSPEC[1];
PROPVARIANT[] propvars = { propvar };
propspec[0].ulKind = (uint)PRSPEC.PROPID;
propspec[0].u.propId = propid;
if (NativeMethods.Succeeded(hr = propertyStorage.ReadMultiple(1, propspec, propvars)))
{
propvar = propvars[0];
}
return(hr);
}
