How to call an interface function of a controller with a node?

Development Programming & Scripting UI
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if the interface is in C++, and your Controller is inheriting that interface via multiple Inheritance,

then that function is already part of your controller!

#BlueprintCallabe

The issue would be that you did not make the interface function BP Callable (I am assuming you want to use this in blueprints

if you cant figure out how to make the IInterface function BP callable

create a wrapper for it in your Controller.h that IS BP callable

#Wiki Tutorial C++ Interfaces

#Wiki Tutorial BP Callable

Rama