How to receive event when user changes system's culture

问题

When my application run with a specified culture. Don't close the application, user changes system's culture, ex: change number decimal separator from "." to ",". How to my application can catch this event. Thanks.

Notes: C# 2.0, Windows Form.

回答1:

You can handle the SystemEvents.UserPreferenceChanged event:

void SystemEvents.UserPreferenceChanged(object sender, UserPreferenceChangedEventArgs e)
{
    // Regional settings have changed
    if (e.Category == UserPreferenceCategory.Locale)
    {
        ...
    }
}

回答2:

If you want to trach system language changes then you have SystemEvents object which contains UserPreferenceChanged event you can attach to.

Sample:

Microsoft.Win32.SystemEvents.UserPreferenceChanged += new UserPreferenceChangedEventHandler(SystemEvents_UserPreferenceChanged);

If you want to track input language changes (like changes in system try when you choose between languages), then you can use: System.Windows.Forms.InputLanguage.CurrentInputLanguage

Sample:

string inputLanguage = System.Windows.Forms.InputLanguage.CurrentInputLanguage.LayoutName;

来源：https://stackoverflow.com/questions/4711555/how-to-receive-event-when-user-changes-systems-culture