PeachBrackets
PeachBrackets.HtmlDocument
HtmlDocument.StructureTagSink Property
Receives the logical structure of the content as it is painted, or null (the default) to record none. Set it before PaintPageAsync(int, Canvas); a consumer that writes a tagged format implements IStructureTagSink to build its structure tree.
public PeachBrackets.Tagging.IStructureTagSink? StructureTagSink { get; set; }