How to access parents variables

Hi Folks,

I don't get it. I have a QWidget and a QThread(*parent). Now the QWidget starts the QThread(*parent). In this QThread I want to access the variables in the QWidget. Imagine the QWidget holds an iserinput like QLineEdit.

Finally I have two Headers:

#1.

Code:

---

#include ...
 
class UserInput : public QWidget
{
    Q_OBJECT
public:
    explicit UserInput(QWidget *parent = 0);
 
    QLineEdit *inputLine;
}

---

#2

Code:

---

#include ...
 
class algorithmus : public QThread
{
    Q_OBJECT
public:
    explicit algorithmus(QWidget *parent)

---

Now in the Contructor of the QWidget

Code:

---

....
 
    calc = new algorithmus(this);

---

Finally I want to access the QLineEdit in the QWidget for the calculation in QThread:

Code:

---

....
 
    return [U]this->parent()->inputLine.toInt()[/U] + 1000; //f.e.

---

Is this even possible?? I am a newbie :)

Ignoring completely the C++ aspect of the question, you can't access widgets from within threads.

ok... and is it possbile between two QWidgtes?

If you use proper C++ syntax and respect scopes then yes.