Purely historic question: VT200 text graphic programming

[Charles Turner]

On 2011-03-10 14:55:02 -0500, Grant Edwards said:

> Eh?  Those are viddotex/teletext systems aren't they?
> 
> I thought the OP was talking about a character-based windowing and
> form-handling library used by applications that ran under VAX/VMS on
> vt200 terminals.  The vt200 wasn't a TV.  It was a character-based,
> mostly-ANSI-escape-sequence, computer terminal connected via async
> serial (RS-232 typically) to a mini/mainframe computer (a DEC VAX
> running VMS in this context).

NAPLPS isn't, but you're correct about the others. NAPLPS had character 
encoded graphics as well as vector drawing codes. It was based on an 
earlier ANSI x.500 protocol that was used in Teleltex, etc., but I've 
forgotten the exact name/designation.

In the US, most of the Teletex work was done on DEC hardware, AFAIK...

Best, Charles