Convert three letter language code to language identifier (LANGID)
c++, internationalization, winapi
Solution
Unfortunately, there's no direct Win32 API that gives you a LANGID given a 3-letters abbreviation.
It looks like CLanguageSupport is your friend today :-) It already implements your plan B to lookup the LANGID based on the contents of the version info resource.
The piece of code you're looking for is int the function
LANGID CLanguageSupport::GetLangIdFromFile(LPCTSTR pszFilename)
Of course, the drawback is that you may have a mismatch between the version info and the DLL name. But you'd very quickly catch it during tests. And if you let a tool such as appTranslator create the DLLs for you, you're sure to be on the safe side.
Problem
Is there some way in the Win32 API to convert a three letter language code, as returned by `GetLocaleInfo()` with `LOCALE_SABBREVLANGNAME` specified, to a corresponding `LANGID` or `LCID`? That is, going in "reverse" to what `GetLocaleInfo()` normally does? What I'm trying to do is to parse what kind of language a resource DLL is using, and so far, without touching anything about the DLL, going by the dll name with a format `nameLNG.dll`, where `LNG` is a three letter language code, seems to be the easiest method, assuming such a function exists. If this isn't easy to do, I guess Plan B is to give our language DLL's a version info resource, specify their respective cultures there, and later on in the application, read which cultures they use.