Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_HINT_PREFERRED_LOCALES - Override for SDL_GetPreferredLocales().
SYNOPSIS
#include <SDL3/SDL_hints.h>
#define SDL_HINT_PREFERRED_LOCALES "SDL_PREFERRED_LOCALES"
DESCRIPTION
If set, this will be favored over anything the OS might report for the user's preferred locales. Changing
this hint at runtime will not generate a SDL_EVENT_LOCALE_CHANGED event (but if you can change the hint,
you can push your own event, if you want).
The format of this hint is a comma-separated list of language and locale, combined with an underscore, as
is a common format: "en_GB". Locale is optional: "en". So you might have a list like this:
"en_GB,jp,es_PT"
This hint can be set anytime.
AVAILABILITY
This hint is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_HINT_PREFERRED_LOCALES(3)