Re: TextData

Emmanuel BEUQUE (ebeuque@pratique.fr)
Mon, 5 May 1997 09:54:30 +0200

=C0 (At) 18:00 +0200 2/05/97, Klaus Hofrichter =E9crivait (wrote) :
>Dear MHEG experts,
>
>can someone refresh my memory with respect for the Text class attribute
>textdata? Why is it there, and why can't one use the content attribute
>like for all other non-text ingredients with content?

Unlike other ingredients, the textdata attribute of the text class is
subject to changes, especially when the text class is inherited in an
entryField class.

Consequently, this mechanisms of initial copy of the content into the
textData attribute allows the modification of the octetString stored/shown
by the text class (either by user interaction in an EntryField only or by
setData action) even if the content attribute was initially referenced to
an external file.

In the case of an included content, the content attributes somehow becomes
a bit useless since it only stores the initial value of the textData.

Hope this helps and that I haven't misunderstood the aim of this textData
attribute. Others please confirm.
Regards,

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Emmanuel BEUQUE Email: ebeuque@pratique.fr
mediaServ tel: +33 (0) 2 99 64 36 64
Multimedia consultant & developer fax: +33 (0) 2 99 64 36 65
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