QProgressBar exception

#pragma once
#ifndef NONCLOSEWINDOW_H
#define NONCLOSEWINDOW_H
class UpdateThread: public QThread
{
	Q_OBJECT
public: 
	UpdateThread(){
		terminated = false;
	}
	void run(){
		//this->startTimer(10);
		//this->exec();
		int i = 0;
		while(!terminated){			
			emit updateSignal();
			Sleep(10);
		}
	}
	void setTerminated(bool terminated){
		this->terminated = terminated;
	}
private:
	bool terminated;
signals:
	void updateSignal();
};

class NonCloseWindow : public QDialog
{
	Q_OBJECT

public:
	NonCloseWindow(QString text = "", bool closeAlowed = true);
	~NonCloseWindow();
	void setText(QString s){lbl->setText(s);}	
	void startProcess();
protected:
	virtual void reject();
	virtual void closeEvent(QCloseEvent* e);
	virtual void showEvent(QShowEvent* event);
private:
	QLabel* lbl;
	QProgressBar* bar;
	bool closeAlowed;	
	int value;
	UpdateThread* thread;
	QMutex* mutex;
private slots:
	void setValue();
};


#endif // NONCLOSEWINDOW_H

#include "nonclosewindow.h"

NonCloseWindow::NonCloseWindow(QString text, bool pcloseAlowed)
: QDialog(),closeAlowed(pcloseAlowed)
{
	value = 0;
	mutex = new QMutex();
	QVBoxLayout* vb = new QVBoxLayout();
	lbl = new QLabel(text);
	vb->addWidget(lbl);

	bar = new QProgressBar(this);
	bar->setMinimum(0);
	bar->setMaximum(0);

	lbl->setAlignment (Qt::AlignCenter);
	vb->addWidget(bar);
	setWindowFlags(Qt::FramelessWindowHint);
	setWindowModality(Qt::ApplicationModal);
	setFixedSize(400,100);

	thread = new UpdateThread();

	this->setLayout(vb);
}

void NonCloseWindow::setValue(){
	if(bar->value() >= bar->maximum() )
		bar->reset();
	bar->setValue(bar->value()+1);
	bar->update();
}

void NonCloseWindow::startProcess(){

}

void NonCloseWindow::showEvent(QShowEvent* event){
	value = 0;
	connect(thread,SIGNAL(updateSignal()),this,SLOT(setValue()),Qt::QueuedConnection);
	thread->setTerminated(false);
	thread->start();
	QApplication::processEvents();
}

NonCloseWindow::~NonCloseWindow()
{
	delete lbl;
}

void NonCloseWindow::reject()
{

}
void NonCloseWindow::closeEvent(QCloseEvent* e)
{
	disconnect(thread,SIGNAL(updateSignal()),this,SLOT(setValue()));
	thread->setTerminated(true);
	thread->quit();	
	if(!closeAlowed)
		e->ignore();
	else
		exit(0);
	
}

void NonCloseWindow::startProcess(){
	while(true){
		setValue();
		QApplication::processEvents();
	}
}

...

NonCloseWindow* ncw = new NonCloseWindow();
ncw->show();

for (int i = 0; i < 100; i++){
  qDedug(i);
}

ncw->close();

...

for (int i = 0; i < 100; i++){
  qDedug(i);
  qApp->processEvents();
}

for (int i = 0; i < 100; i++){
  qDedug(i);
}

NonCloseWindow ncw;
ncw.myjob([] () {
    for (int i = 0; i < 100; i++) {
         doYourStuffThere();
    }
});
ncw.exec();