Hi
Using Native UI Builder I am able to add Properties->AddHandler->IFocusEventListener for common controls (Slider,Button,ColorPicker,Checkbox etc).

But when I pressed on controls during App execution OnFocusGained was not invoked.I tried to call SetFocusable(true) for every control in code. Method returned E_SUCCES. Also I  was able to invoke SetFocus() for controls in code, but no visual changes happened.

Is IFocusEventListener interface applicable for these elements ? If so how could I use it?

Thank you in advance.
Alexey.