ofParameterGroup callback lambda new api

ofApp.cpp

ofParameterGroup parameters;
ofEventListener listenerParameters;

parameters.add(param1.set("p1", 1.f, 0.f, 10.f));
parameters.add(param2.set("p2", 10.f, 1.f, 50.f));
parameters.add(param3.set("p3", 5, 0, 10));

listenerParameters = parameters.parameterChangedE().newListener([this](ofAbstractParameter& e){
    string n = e.getName();
    ofLogNotice("ofApp") << "Changed " << n << ": " << e;

    if(e.isOfType<float>()) {
        if(n == param1.getName() ){
            ofParameter<float>& paramfloat = e.cast<float>();
            // if(paramfloat.get()!=paramfloat.getInit()) {
            //param has changed
            //...
            // }
        }
        else if(n == param2.getName() ){
            //ofParameter<float>& paramfloat = e.cast<float>();
            //...
        }
        else if(n == param3.getName() ){
            //ofParameter<float>& paramfloat = e.cast<float>();
            //...
        }
    }

    else if(e.isOfType<int>()) {
    }
});