signals are not working from QThread derived class

[dpn]

Hi all,

Application couldn't receive signal from QThread object.

I have implemented this way:

workerthread.h:
----------------------

#ifndef WORKERTHREAD_H
#define WORKERTHREAD_H
 
#include <QThread>
 
class workerthread : public QThread
{
    Q_OBJECT
public:
    explicit workerthread(QObject *parent = 0);
    void run();
 
signals:
    void signal_worker_thread();
};
 
#endif // WORKERTHREAD_H

#ifndef WORKERTHREAD_H
#define WORKERTHREAD_H

#include <QThread>

class workerthread : public QThread
{
    Q_OBJECT
public:
    explicit workerthread(QObject *parent = 0);
    void run();
    
signals:
    void signal_worker_thread();
};

#endif // WORKERTHREAD_H

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workerthread.cpp
-------------------------

#include "workerthread.h"
#include <QDebug>
 
workerthread::workerthread(QObject *parent) :
    QThread(parent)
{
}
 
void workerthread::run()
{
    for(int i = 0; i < 10; ++ i)
    {
        qDebug() << "workerthread::signal_worker_thread()";
        emit signal_worker_thread();
    }
    return;
}

#include "workerthread.h"
#include <QDebug>

workerthread::workerthread(QObject *parent) :
    QThread(parent)
{
}

void workerthread::run()
{
    for(int i = 0; i < 10; ++ i)
    {
        qDebug() << "workerthread::signal_worker_thread()";
        emit signal_worker_thread();
    }
    return;
}

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WorkerThread is derived from QThread and overridden Run() method.
I have launched this thread on GUI - button click event to do background process.

Button click slot event:
---------------------------------

void ProductNameDialog::slotButtonClicked()//
{
    workerthread *pthread = new workerthread();
    QObject::connect(pthread, SIGNAL(signal_worker_thread()), this, SLOT(slotTest()));
 
    pthread->start();
    pthread->wait();
 
    accept();
    return;
}

void ProductNameDialog::slotButtonClicked()//
{
    workerthread *pthread = new workerthread();
    QObject::connect(pthread, SIGNAL(signal_worker_thread()), this, SLOT(slotTest()));

    pthread->start();
    pthread->wait();

    accept();
    return;
}

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I have tested with sample Qt-GUI MainWindow application. It's working fine.

When I integrated into my application, slotTest() is not fired. I hope, I am missing something. Can somebody suggest me what I am missing here.

Thanks in advance.