I need to write a program which knows which language is selected in the language bar.

Anybody knows how to do that?

You cna do this is C# as follows:

a) Start a C# Console Applictaion.
b) Open solution exlorer and add refernce to System.Windows.Forms.
c) Paste the followng code in the Project Editor.

using System;
using System.Globalization;
using System.Windows.Forms;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
InputLanguage myDefaultLanguage =
InputLanguage.DefaultInputLanguage;
Console.WriteLine("Current input language is now: " +
myDefaultLanguage.Culture.EnglishName);
Console.ReadLine();
}
}
}

d) Compile the code and run it.

You should be able to see the current input languag selected in the language bar.