QTcreator - Check 1 process is running ?

I want to create an inspection process A is always a process B, if B dies, the process will restart the process A process, I have to do?
build on QT not use windows API

Connect the relevent signals from QProcess

Quote:

---

Originally Posted by fatjuicymole

Connect the relevent signals from QProcess

---

how to connect ?

Quote:

---

Originally Posted by fatjuicymole

Connect the relevent signals from QProcess

---

Code:

---

#include "widgetcheckprocess.h"
#include <QtGui/QApplication>
 
int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	WidgetCheckProcess w;
	w.show();
	return a.exec();
}

---

WIDGETCHECKPROCESS.h

Code:

---

#ifndef WIDGETCHECKPROCESS_H
#define WIDGETCHECKPROCESS_H
 
#include <QtGui/QMainWindow>
#include "ui_widgetcheckprocess.h"
#include <QProcess>
class WidgetCheckProcess : public QMainWindow
{
	Q_OBJECT
 
public:
	QProcess *qpProcess;
	WidgetCheckProcess(QWidget *parent = 0, Qt::WFlags flags = 0);
	~WidgetCheckProcess();
	public slots:
		void SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus);
		void StartProcess(QString qsProcessPath);
signals:
		void finished(int exitCode, QProcess::ExitStatus exitStatus);
private:
	Ui::WidgetCheckProcessClass ui;
};
 
#endif // WIDGETCHECKPROCESS_H

---

WIDGETCHECKPROCESS.cpp

Code:

---

#include "widgetcheckprocess.h"
#include <QMessageBox>
WidgetCheckProcess::WidgetCheckProcess(QWidget *parent, Qt::WFlags flags): QMainWindow(parent, flags)
{
	ui.setupUi(this);
	StartProcess("D:/s.exe");
	connect(qpProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(SlotDetectFinish(int, QProcess::ExitStatus)));
}
WidgetCheckProcess::~WidgetCheckProcess()
{
}
void WidgetCheckProcess::StartProcess(QString qsProcessPath)
{
	qpProcess->start(qsProcessPath);
}
void WidgetCheckProcess::SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus)
{
	QMessageBox msgBox;
	msgBox.setText("Process Run Finnish");
	msgBox.exec();
}

---