by "semi-localization" I mean this: suppose I have an app localized for English only: all controls show their own caption according to their relevant constant.
But I have a label that shows date.longdate, and running the app the label shows the longDate in my preferred language: English. So far so good.
Now I would like to have that label to show the longDate according to the user's preferred language, for instance, Chinese, or Arabic and so on and so forth. As far as I know, this cannot be achieved, because the app is localized for English only.
Of course, if I added even just one constant localized for several languages and the user's preferred language matched one of them, the System-supplied longDate would appear in the user's preferred language. But the result of this, would be that on MAS the app would appear as localized for all the languages added in just one constant created as a mere placeholder (or language-holder). Too bad.
So, is there some declare (no plugin) that would let me achieve this result? More precisely: dates and times in the user's preferred language..
I looked into macOSLib(64bit) but I find it difficult to detect a possible candidate method/function.