how to get current input language in wpf c#?

Question

Hi all,

 

i am creating a wpf application and getting current input language using below code

 

string lang = "Current " + InputLanguageManager.Current.CurrentInputLanguage.ToString();

 

and it is working fine but now when i am setting this inside the background worker thread i am getting

 

exception "Object reference not set to an instance of an object."

 

please tell me how to use dispatcher for getting current input language.

 

TIA