How to get inputlanguagemanager.current.currentinputlanguage via dispatcher in WPF?

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C#

WPF

Hi all,
i am working on wpf application and getting current input language using InputLanguageManager.

and it is working fine but now when i am setting this inside another thread (background worker thread) i am getting exception

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

and i am not getting how to use dispatcher for this

please help me to get this value using dispatcher.

TIA

What I have tried:

i tried below code for this

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

how to use dispatcher for this code.
thanks