QObject::setParent: Cannot set parent, new parent is in a different thread

Question

Greeting

I have a following class.

class MyClass : public QObject
{
    Q_OBJECT

public:
    Q_INVOKABLE QVariant status();

public:
    MyClass(Cla         


        

Answer 1

This is wrong in many ways:

QThread myClassThread;
MyClass * myClass = new MyClass(classX);
connect(&myClassThread, SIGNAL(started()), myClass, SLOT(init()));
myClass->moveToThread(&myClassThread);
myClassThread.start();

1. You are creating thread object on stack not on heap! This means myClassThread object will be destroyed when this block of code ends.
2. myClass has a parent. Object which are moved to thread can't have any parent. Only whole three of objects can be moved to threads