Initialiser list with QObject

[Atomic_Sheep]

Hi guys, I'm playing around with composition and inheritance for the first time and I'm hitting a bit of a problem.

From my understanding, to be able to have an object emit a signal and receive signals i.e. for that it must have slots, it must inherit QObject.

So I created my own class and included the Q_OBJECT macro:

class Button : public QObject
{
    Q_OBJECT

class Button : public QObject
{
    Q_OBJECT

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However, I would also like this button to include other classes which outline the button position and other attributes in their own classes. When I created the initialiser list in the header file, the variables which I assigned to the Button members explicitly i.e. after the : symbol, spit out an error upon building...

'position' was not declared in this scope.

How do I solve this problem?

I tried simply adding my initialiser list after the

Button::Button(QObject *parent) :
    QObject(parent)

Button::Button(QObject *parent) :
    QObject(parent)

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but that didn't work.