Service for IFeedback.

You can find more information in comments below.

class IFeedbackService
    {
    public:
        virtual void setFeedbackParam(void *param) = 0; // Set callback custom parameter    
        virtual void setFeedbackCallback(IFeedback::Callback callback) = 0; // Set callback function    
    
        virtual void Release() = 0; // Destroy instance    
    };