Signal & Slots when pointer to the sender object has been copied

Hi guys, Im sorry if I cannot explain properly the situation

lets get some

the header could be header.h

Code:

---

class A:
{
  signals:
      MySignal();
};
 
class MainWindow
{
A * a:
 
// More things
//........
 
};
 
class B
{
  public:
  B(A* a);
  private slots:
  myDummySlotInB()
 
  private:
  A* my_a;
}

---

lets see supose that the cpp file contains

Code:

---

MainWindow::MainWindow()
{
connect(a, SIGNAL(MySignal()), this, SLOT(dummySlot()));
//......
}
 
 
B::B(A* a)
{
 my_a = a;
 
connect(my_a, SIGNAL(MySignal()), this, SLOT(dummySlotInB()));
}

---

Why the connection in the constructor of MainWindow is working properly, and no the connection in the constructor of B?. I just copied the pointer, so my_a is poiting to (*a) as well. Then, if the pointer a emits the signal, Why I cannot catch it in B?

Thanks

Are you sure you have the macro Q_OBJECT in your class B. Is there any error shown when you connect?

The class B has the macro Q_OBJECT (it also send signals) and there is no compiling problem. I can execute the app but the connection in B doesnt work

Solved: There was a small diference in the name of the SLOT. It lets you complile but there is no slot to catch the signal.