Localize Windows10

cocos2d-x
1

Hi, I want localize both English and Japanese in Windows 10 app.
Usually I do localization code like this for Android and iOS apps:

FileUtils* fileUtil = FileUtils::getInstance();  

LanguageType language = Application::getInstance()->getCurrentLanguage();  

if(language == LanguageType::JAPANESE){
      fileUtil->addSearchPath("ja.lproj");
}else{
     fileUtil->addSearchPath("en.lproj");
}

However ‘language’ returns (null) when I run Windows10 app.
Please help me!