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 Readme for:  Datatype » Image » vtx_dt.lha


Description: Dtype for CEPT-3/videotex/teletext frames
Download: vtx_dt.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 65kb
Version: 1.6
Date: 29 Jun 2020
Author: Chris Young
Submitter: kas1e
Email: kas1e/yandex ru
Homepage: http://www.unsatisfactorysoftware.co.uk/
Category: datatype/image
Replaces: datatype/image/vtx_dt.lha
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 11351
Comments: 1
Snapshots: 1
Videos: 0
Downloads: 75  (Current version)
527  (Accumulated)
Votes: 1 (0/0)  (30 days/7 days)

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This datatype allows you to view CEPT-3 format frames and carousels
(commonly known as videotex, teletext, viewdata or prestel frames)
It only supports full frames (960 byte file of 40x24 characters)
and carousels of full frames.  You can create carousels by joining
single frames together with the JOIN command.  Carousels MUST have
the extension ".car" to be detected by the datatype.  Frames MUST
have the extension ".bin".  As of v1.5, EP1 and EPX format files
are also supported.  These are detected on the file header so can
have any extension.  As of v1.6, Viewdata frames are properly
supported, can be any length but MUST have the extension ".cpt".
Carousels are split at the CS byte (0x0C).

It requires the MtA font (included).  This is a modified version of
the MtA font from the PstView archive, where I have changed the
font to the UK character set.  If you need the accented characters,
you might want to use the original instead.

Known bugs and limitations

Conceal, flash and steady are not supported.  These codes will be
ignored (concealed text will be printed as if it had been revealed)

There are two descriptors as Datatypes picks some files up as binary
and others as ASCII, so you need a descriptor for each type.
Which is ASCII and which is binary is arbitrary and the author can't
remember five minutes after recreating them.  The CPT and CPT-ASCII
types are separate for boring reasons, if you have a conflict with
another datatype which expects files to have the .cpt extension you
can remove them.

Most of the icons are by Ken "Ken's Icons" Lester.

As usual, I can and will not accept responsibility for any damage,
loss of data etc incurred through use of this software.  This archive
is provided "as-is" without warranty of any kind and all use is at
your own risk.

Please check the PGP signature in the Aminet readme against the
archive to ensure it has not been tampered with.

v1.6 (28/06/2020)
* Tenth anniversary edition :)
* Added full working support for Viewdata frames.  Frames included
  with PstView now view correctly if the files are renamed to ".pst".

v1.5 (06/03/2010)
* Added support for EP1 and EPX format files.

* ??? (not released)

v1.3a (12/01/2008)
* Descriptor changed - now files must end in .BIN or .CAR to be recognised

v1.3 (10/04/2007)
* Fixed a potential unreferenced memory access which particulary showed up when
running Eastern
* Fixed a potential buffer over-run
* Previous release didn't close the double-height font

v1.2 (26/03/2007)
* Oops, forgot to close diskfont.library
* Fixed the double-height issue
* Depth is now reported correctly in Multiview
* Carousels are now supported
* Capital letters in graphics mode now show up correctly
* Modified the double-height font to the correct UK character set

v1.1 (25/03/2007)
* First release

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