Run a new thread Qt C++ - c++

Question

i want to run code in a seperate thread of the main application, for that i hava created some file :
thread2.h
#ifndef THREAD2_H
#define THREAD2_H
#include <QThread>
class thread2 : public QThread
{
Q_OBJECT
public:
thread2();
protected:
void run();
};
#endif // THREAD2_H
thread2.cpp
#include "thread2.h"
thread2::thread2()
{
//qDebug("dfd");
}
void thread2::run()
{
int test = 0;
}
And the main file called main.cpp
#include <QApplication>
#include <QThread>
#include "thread1.cpp"
#include "thread2.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
thread2::run();
return a.exec();
}
But it dosen't work...
Qt Creator tell me : "cannot call member function 'virtual void thread2::run()' without object"
Thanks !

Answer 1

Invoking it like this: thread2::run() is how you would call a static function, which run() is not.
Also, to start a thread you don't call the run() method explicitly, you need to create a thread object and call start() on it which should invoke your run() method in the appropriate thread:
thread2 thread;
thread.start()
...

Answer 2

A simple Thread Class that allows you to pass a pointer to a function is as follows:
typedef struct TThread_tag{
int (*funct)(int, void*);
char* Name;
int Flags;
}TThread;
class Thread : public QThread {
public:
TThread ThreadInfoParm;
void setFunction(TThread* ThreadInfoIn)
{
ThreadInfoParm.funct = ThreadInfoIn->funct;
}
protected:
void run()
{
ThreadInfoParm.funct(0, 0);
}
};
TThread* ThreadInfo = (TThread*)Parameter;
//Create the thread objedt
Thread* thread = new Thread;
thread->setFunction(ThreadInfo);//Set the thread info
thread->start(); //start the thread