Field to know that document already has been readed

I need to know that field modifies Notes to know that a document already has been readed in the data base mail, places it of red in black. Thanks

Subject: Field to know that document already has been readed

There is no such field - that information is not stored in the document.

Remember that, in general, Notes databases are used by many people. Just because YOU have read a document does not mean that I have read that same document.

So Notes tracks the read status by user. In effect, every user of the database gets an “unread table” stored in the database, which is created when they first open it. Notes uses this table to show each user which documents they have read.

As far as I know (up to R6) there are no methods to access or change this table using code.