Pointer parameter in signals: Memory leak?

[AlGaN]

Hello,

class Sender : public QObject
{
    Q_OBJECT
 
public:
   Sender(int val) : mVal(val) { }
 
signal:
    void intChanged(ChangeObject*);
 
public slots:
    void changeInt(int i) {
        mVal = i;
        emit intChanged(new ChangeObject(mVal));
    }
 
private:
    int mVal;
};
 
class Receiver : public QObject
{
    Q_OBJECT
 
public:
    Receiver();
 
public slots:
    void onIntChanged(ChangeObject* c) {
        mReceivedVal = c->changed();
    }
 
private:
    mReceivedVal;
};
class ChangeObject
{
public:
    ChangeObject(int changed) : mChanged(changed) { }
 
    int changed() const { return mChanged; }
private:
    int mChanged;
};

class Sender : public QObject
{
    Q_OBJECT

public:
   Sender(int val) : mVal(val) { }

signal:
    void intChanged(ChangeObject*);

public slots:
    void changeInt(int i) {
        mVal = i;
        emit intChanged(new ChangeObject(mVal));
    }

private:
    int mVal;
};

class Receiver : public QObject
{
    Q_OBJECT

public:
    Receiver();

public slots:
    void onIntChanged(ChangeObject* c) {
        mReceivedVal = c->changed();
    }

private:
    mReceivedVal;
};
class ChangeObject
{
public:
    ChangeObject(int changed) : mChanged(changed) { }

    int changed() const { return mChanged; }
private:
    int mChanged;
};

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Where to delete new created ChangeObject? in class Receiver? What about not handled signals with pointer parameter types? (like the Qt own signals that are not accepted ie e->accept() is not called in receiver object)

Thanks for any clarification