Aspect Ratio Limiting

Hi,

I am looking for a way to limit the resizing of the window. So its only allowed to scale the window between a aspect ratio range.

I found a delegate in the SceneViewport which will be executed when the window is resizing, but when I set the delegate it throws an exception (yes I posted it on AnswerHub already - https://answers.unrealengine.com/questions/76573/exception-with-delegate-in-fsceneviewport.html).

So I just wanted to ask if someone has a better idea how to catch the window resizing or limit the aspect ratio.