I want my OpenType font to use the right style for the language. For example, I want to be able to pick Tai Lue, ISO 639-3 code khb, OpenType tag XBD, Microsoft language code apparently given by this line in lang.h:
#define LANGUAGE_LU_CHINA 0x0490
(I have a longer list, but first I need to understand if simply asking for them will provide the ability to use them.)
This question applies to LibreOfice 188.8.131.52, UI language English, document (or cell or paragraph) language - Tai Lue, component: Writer, Calc (probably all)
Operating system: Ubuntu 12.04 (English), but Windows (Thai) is also desirable.
The relevant script is Tai Tham (ISO code Lana, OpenType tag lana). Selecting the language gets the right style for Lao in the Tai Tham script.