Question about qt objects deletion

[MI]

Hello everyone i am a newbie to this form and to qt world and i have a simple question which is how to make my class auto deletes its members by accepting a parent

class Myform : public QWidget
{
    Q_OBJECT
 
public:
 
      Myform()
      {
          b=new QPushButton("OK",this);
          l=new QLineEdit(this);
          mylabel=new QLabel(this);
      }
 
      ~Myform()
      {
 
      }
 
private:
 
 QPushButton *b;
 QLineEdit *l;
 QLabel *mylabel;
 
};

class Myform : public QWidget
{
    Q_OBJECT

public:
    
      Myform()
      {
          b=new QPushButton("OK",this);
          l=new QLineEdit(this);
          mylabel=new QLabel(this);
      }

      ~Myform()
      {
          
      }

private:
      
 QPushButton *b;
 QLineEdit *l;
 QLabel *mylabel;
 
};

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