IPXC_Annotation::IsMarkup Property
From PDF XChange PDF SDK
The property IsMarkup is TRUE when the annotation is a Markup annotation. Annotations of the following types are markup annotations: Text, FreeText, Line, Square, Circle, Polygon, PolyLine, Highlight, Underline, Squiggly, StrikeOut, Caret, Stamp, Ink, FileAttachment, Sound, Redact and Projection.
Syntax
HRESULT get_IsMarkup([out, retval] VARIANT_BOOL* bIsMarkup);