Enters a marked-content section (BDC or BMC).
public void BeginMarkedContent(CosName tag, CosObject? properties, bool inlineProperties = false)
The marked-content tag.
The resolved property list (a BDC operand or the named resource it names), or null for BMC.
true when an /OC section's property list was written inline instead of as a named resource, which
§8.11.3.2 forbids; it is still honoured, with an OptionalContentInlineProperties diagnostic.
ISO 32000-2 §8.11.3.2 and §14.6.