Last Update : Thursday 02 February 2017 at 22 h 17
Manual n° 1
VIEWFAX - By J.Valentine 12/87
Viewfax is a program which enables you to create your own teletext
system, browse through its pages and edit them.
When the program is loaded, you will be asked the date and time.
The time takes the form of hours and minutes. So, to tell it that the
time is 2.18pm, you would type "1418". 9.58am would be "0958".
After you have entered the date and time, Page 100 will be loaded
from disc. This will have the WACCI logo and a few other things, and
will remain that way until you change (edit) the page.
Viewfax operates in two modes: View mode and Edit mode (the mode is
indicated next to the time and the top-right of the screen).
Typing a 3-figure page number will make Viewfax load that page from
disc and display it on the screen.
Press "C" to create a page. You will be prompted for a 3-figure page
number. A blank page (a 2K binary file), will be saved to disc, and
you will be put into Edit mode.
Press "E" to enter Edit mode.
You will be prompted for a 3-figure page number which will correspond
to the page you wish to edit. The page will then be loaded from disc,
and put onto the screen for editing. The Cursor keys move the cursor
around. The Return (enter) and Delete keys do not behave as usual, and
the numeric keypad keys have been redefined to give you 36 graphics
characters. Pressing CTRL with some of the letter keys will give Greek
characters. A table of the key settings is on page 101 (because it
takes less memory than putting a table here).
Press CTRL+Q to return to View mode
Press CTRL+U to update the page (erase, then save)
Press CTRL+W to wipe the page (to current pen & paper settings)
COLOUR: As the program works in Mode 1, it is not possible to have the
full 8-colour teletext. To colour a particular square, place the
cursor over it and press one of the following (with CTRL pressed)
1 2 3 4 5 6 7 8
PEN 0 PEN 1 PEN 2 PEN 3 PAPER 0 PAPER 1 PAPER 2 PAPER 3
The Pen and Paper work together, so if you have them set to Pen 1
and Paper 2, pressing CTRL+8 will make it Pen 1 and Paper 3. These
keys auto-repeat (will keep working when you hold them down), so
making it easier to paint a block of the screen.
NOTES: 1) Make a copy of Viewfax and P100 onto a separate disc when
you first use the program. That way you will have much more room for
your pages. 2) Page numbers are always 3 figures long, eg. P021, P700,
P988, P001 etc.