On Wed, Jun 20, 2001 at 11:50:11PM -0400, Megan wrote:
> 
> >Well, I'm not saying it would be pretty, but it's still got to be better
> >than the print-only.
> 
> Not necessarily... it is accomplished through use of escape sequences
> to draw anything.  At least character sets can be downloaded, and
> macros defined.  But each of the devices which support ReGIS do
> so to different levels and different resolutions.
> 
> The ones I can think of off-hand are the VK100 (GIGI), VT125 and
> the VT340.  I don't know if others in the VT family handle ReGIS.
> 
> If I remember correctly, the graphics planes of the VT125, for
> example, don't move with the text screen, so one cannot scroll
> without erasing and re-writing.
> 
> But on the other hand, I believe it has something called SIXEL
> graphics, so once the escape sequence has been sent to start
> accepting SIXEL, you can send it a string of characters which
> specifies a swath six pixels high and as many pixels wide as you
> send characters... so all one might need is a bitmap of what should
> be displayed and you simply send the sixel screen update...

Does the VT125 do SIXELs?  I thought it was ReGIS only, unlike some
of the newer VTs.  Actually, I thought DEC built terminals with only
SIXELs, terminals with only ReGIS, and terminals with both.

I'm pretty sure the VT440 and VT540 (I've never even seen a 540) have
a superset of the VT340 functionality, which would imply ReGIS and
SIXELs support.  I've never used one, though.

-- 
Thor Lancelot Simon	                                      tls@rek.tjls.com
    And now he couldn't remember when this passion had flown, leaving him so
  foolish and bewildered and astray: can any man?
						   William Styron