Two localization questions

[mid 5741]

1.) Is GetSystemDefaultLangID() the best way to detect which language version of the OS is running? Or GetUserDefaultLangID()? Or something else? 2.) Is there a way to temporarily trick the US version of XP into thinking it's in another language? I tried changing the "Default input language" in the "Regional and Language Options" control panel, along with both GetSystemDefaultLangID() and GetUserDefaultLangID() in my code, but they both return English regardless of what I set for the default input language. Do I need localized installs of XP to test my localizations?

[Sameerkumar Namdeo]

Do I need localized installs of XP to test my localizations? No. Instead you can change the language in "Regional and Language Options" -> "Advanced" tab.

[mid 5741]

That change did not seem to affect anything. After reboot, XP was still in English and my code (calling GetSystemDefaultLangID()) is still reporting English. I set the option to both Vietnamese and Chinese(Taiwan), but neither had any effect.