/// <Summary>
/// Encodes the ExtendedProperties in the ISF stream.
/// </Summary>
#else
/// <Summary>
/// Encodes the ExtendedProperties in the ISF stream.
/// </Summary>
#endif
private static void PersistExtendedProperties(DrawingAttributes da, Stream stream, GuidList guidList, ref uint cbData, ref BinaryWriter bw, byte compressionAlgorithm, bool fTag)
{
// Now save the extended properties
ExtendedPropertyCollection epcClone = da.CopyPropertyData();
//walk from the back removing EPs that are uses for DrawingAttributes
for (int x = epcClone.Count - 1; x >= 0; x--)
{
//
// look for StylusTipTransform while we're at it and turn it into a string
// for serialization
//
if (epcClone[x].Id == KnownIds.StylusTipTransform)
{
Matrix matrix = (Matrix)epcClone[x].Value;
string matrixString = matrix.ToString(System.Globalization.CultureInfo.InvariantCulture);
epcClone[x].Value = matrixString;
continue;
}
if (DrawingAttributes.RemoveIdFromExtendedProperties(epcClone[x].Id))
{
epcClone.Remove(epcClone[x].Id);
}
}
cbData += ExtendedPropertySerializer.EncodeAsISF(epcClone, stream, guidList, compressionAlgorithm, fTag);
}