How to set properties of type "Lang alt"?

[Pipian]

I have had some success with setting language alternative with exempi,  
but won't have my code available until tomorrow. I'll try to get you  
an answer tomorrow.

On Aug 21, 2008, at 3:23 AM, Christoph Dalitz <christoph.dalitz at hs-niederrhein.de 
 > wrote:

> Hello,
>
> while setting scalar properties (value types "Bool" and "Text") works
> fine with xmp_set_property, I could not figure out how to set  
> properties
> of value type "Lang alt". I have tried
>
>    xmp_set_localized_text(xmp, NS_DC, "rights",
>                           NULL, "x-default",
>                               "Licensed under CC By-Sa 3.0",
>                           XMP_PROP_HAS_LANG);
>
> but always obtain the error
>
>    Can't fit into specified packet size
>
> The error occurs invariably also with other option bits or
> explicit language settings. It should be noted that this property
> does not yet exist in my PDF file, so maybe I have missed some
> memory allocation beforehand?
>
> Does anyone know how to set localized text properties with libexempi?
>
> Thanks,
>
> Christoph
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