/// <summary>
/// Builds the list of Custom Guids that were used by this particular stroke, either in the packet layout
/// or in the drawing attributes, or in the buttons or in Extended properties or in the point properties
/// and updates the guidlist with that information
/// </summary>
/// <param name="stroke"></param>
/// <param name="guidList"></param>
private void BuildStrokeGuidList(Stroke stroke, GuidList guidList)
{
int i = 0;
// First drawing attributes
// Ignore the default Guids/attributes in the DrawingAttributes
int count;
Guid[] guids = ExtendedPropertySerializer.GetUnknownGuids(stroke.DrawingAttributes.ExtendedProperties, out count);
for (i = 0; i < count; i++)
{
guidList.Add(guids[i]);
}
Guid[] descriptionGuids = stroke.StylusPoints.Description.GetStylusPointPropertyIds();
for (i = 0; i < descriptionGuids.Length; i++)
{
guidList.Add(descriptionGuids[i]);
}
if (stroke.ExtendedProperties.Count > 0)
{
// Add the ExtendedProperty guids in the list
for (i = 0; i < stroke.ExtendedProperties.Count; i++)
{
guidList.Add(stroke.ExtendedProperties[i].Id);
}
}
}
/// <summary>
/// Builds the GuidList based on ExtendedPropeties and StrokeCollection
/// </summary>
/// <returns></returns>
private GuidList BuildGuidList()
{
GuidList guidList = new GuidList();
int i = 0;
// First go through the list of ink properties
ExtendedPropertyCollection attributes = _coreStrokes.ExtendedProperties;
for (i = 0; i < attributes.Count; i++)
{
guidList.Add(attributes[i].Id);
}
// Next go through all the strokes
for (int j = 0; j < _coreStrokes.Count; j++)
{
BuildStrokeGuidList(_coreStrokes[j], guidList);
}
return guidList;
}