IPXC_Annotation::ModificationDate Property
From PDF XChange PDF SDK
Represents last modification date of the annotation. The date is returned as a string in PDF Date format. This format can be converted to OLE DATE type by PDFDateToDate method.
Syntax
HRESULT get_ModificationDate([out, retval] BSTR* ppDate); HRESULT put_ModificationDate([in] BSTR ppDate);