A small plugin was released today to assist developers who want to detect the display language of the operating system, which may be different to the system locale.
From the operating system help:
"The system locale determines the default character set (letters, symbols, and numbers) and font used to enter and display information in programs that don't use Unicode. This allows non-Unicode programs to run on your computer using the specified language. You might need to change the default system locale when you install additional display languages on your computer. Selecting a different language for the system locale doesn't affect the language in menus and dialog boxes for Windows or other programs that do use Unicode."
This new plugin does exactly help you to detect the language in menus and dialog boxes for Windows. It also allows you to find out the original language of the operating system, before a multilingual user interface pack (MUI) or a Windows language pack (LIP) was applied.
The actions plugin is available for both Lua 5.0 and Lua 5.1.