How to set minimum size of window in ue4?

I want user to resize but not less than 1920*1080.

How to set minimum width and height of window in ue4?

i tried setting MinWindowWidth and MinWindowHeight in game.ini. It does not work

Is there any way in c++ to do this?

Thank you.

Adding the following in Config/DefaultGame.ini->
[/Script/EngineSettings.GeneralProjectSettings]
MinWindowWidth = value
MinWindowHeight = value