The Localization Tool comes with some handy functions to control localization in your game:

Setting text in C++

FText Text = LOCALIZATION_TEXT("SwitchButton_en");

The parameter in LOCALIZATION_TEXT is the key in the csv configuration table, which will be searched and assigned from all CSVs.

But if you have duplicate keys, this method may produce incorrect results.

FText Text = NLOCALIZATION_TEXT("DemoLocalization", "SwitchButton_en");

NLOCALIZATION_TEXT：This method is more optimized and can search more accurately.

• Parameter 1 is the relative path of the csv configuration table, which can be the csv file name, because it will do substring search; if you have duplicate names in two folders, such as A/Menu.csv and B/Menu.csv, and you want to use the key in B/Menu.csv, you can use NLOCALIZATION_TEXT("B.Menu", "SwitchButton_en"); to assign the value. When the system uses the concatenation of the name, it converts / to . for processing.
• Parameter 2: Key in the csv configuration table.

Get a list of available languages

Returns a list of language codes that the system can use. This is derived from multiple language-xx columns in the csv file.

GET_LOCALIZATION_TOOL().GetAvailableLanguages();
ULocalizationToolLibrary::GetAvailableLanguage();

Get current language

Returns the code of the language currently in use.