Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.
If you are already a Datascope Select client, you can see samples, download the .Net SDK, and download a Windows sample app here:
You should fine Intraday samples in there.
In essence this is the same query as this one. See answers there.