Detecting which extended sprited i touched - c++

Question

I want detect which object of Card I touched. Card is custom Class which extends cocos Sprite.
I would like to call member methods on card. Something like this: if (target is Card) target.openCard();
Thank you very much in advance.
Main Class Body
bool HelloWorld::init()
{
... some init code, generating card arrays, shuffling
// draw memory cards
int count = 0;
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 4; j++)
{
auto card = Card::createCard();
card->customInit(cardsPictures[count]);
this->addChild(card);
card->setPosition(100 + i*100, 600 - j*100);
count++;
}
}
// register event listener
auto touchListener = EventListenerTouchOneByOne::create();
touchListener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan, this);
touchListener->onTouchEnded = CC_CALLBACK_2(HelloWorld::onTouchEnded, this);
touchListener->onTouchMoved = CC_CALLBACK_2(HelloWorld::onTouchMoved, this);
touchListener->onTouchCancelled = CC_CALLBACK_2(HelloWorld::onTouchCancelled, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
return true;
}
bool HelloWorld::onTouchBegan(Touch* touch, Event* event)
{
auto target = event->getCurrentTarget();
if (target is Card) target.openCard(); // not working
return true;
}

Answer 1

(target is Card)
That doesn't look like C++ to me. What is it ? :D
First:
Is target a pointer ? If so do:
target->openCard(); // instead of target.openCard();
Anyway, if you want to call methods on an object that you are CERTAIN is of type card, perhaps you should do :
Card* myCard = static_cast<Card*>(target);
myCard->openCard();
To be honest unless you actually post the relevant code it would be hard for anyone to help you. What does Card even look like ? (I don't care! XD)