Friday December 22 1995, Peter Fitzsimmons writes to John Poltorak:

 JP>> There are no equivalent ASCII characters which I can use. I have a DOS
 JP>> program (but no source), which displays the screens properly in full
 JP>> screen, and I would like to be able to do the same thing in OS/2, but
 JP>> I have no idea how to code it. I don't expect that I can use the Vio
 JP>> commands since I think it will have to be full screen.

 PF> I'm not sure I understand yet what these teletext files are.

There is probably a more generic name - possibly videotext (?). There are
the text files which are receivable on TV sets. CNN transmit them, so I'm
sure must be available outside the UK. Here's an example:-

  P100CEEFAX 100  Sat  1 Apr 15:43/12
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,1/6
7###7###7####k##k##k##k###k#k5 5 5 5 5
jj j  0" `  `  `z   j!5 5 5
<,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,l
5  Main News  101    Finance  200   j
5  Home News  110    Sport    300   j
5 Politics   130   Weather  400   j
5 World News 160    Travel   500   j
5  A-Z Index  199    TV/Radio 600   j
-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.

<,,,,,,,,,,,,,,NEWS,,,,,,,,,,,,,,,,,l
5JOHN MAJOR SETS OUT NEW TORY AGENDAj
5       N ws Headlines - 101        j
-,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.
@BBC                             BBC
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,1/6
7###7 ###7####k##k##k##k###k#k5 5 5 5

 PF> can't
 PF> use are the ones you should prob never be using anyway (like
 PF> VioGetPhysBuf).

This is how they look in a text window when I run my DOS program, but it
works fine in full screen. The problem is how to display the graphics
characters under OS/2. They consist of 6 (2*3) blocks and do not directly
map to ASCII characters.

Someone mentioned something about using MODE 7, but I've never come across
this before.


John
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mailto://jpolt{at}bradnet.demon.co.uk

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