Time out for a QProcess?

[nthung]

hi all.
I have a program(called Mother_Program) and this program calls other program( called Tesst.exe), and for 3 seconds the Tesst.exe must close, if Tesst.exe takes bigger than 3 seconds, Mother_Programm have raise time out. But i don't how to code the timeout function?
thanks
This is my code

#include <QtCore/QCoreApplication>
#include<QProcess>
#include<stdio.h>
class TIMEOUT{
public:
signals:
    void timeout();
};
void TIMEOUT::timeout(){
//Help me code there. Thanks
}
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
QProcess proc;
TIMEOUT timeout;
QObject::connect(&proc, SIGNAL(timeout.timeout()),&a, SLOT(quit()));
proc.execute("C:\\Tesst.exe");
printf("Hello");
proc.waitForFinished(1000);
    return a.exec();
}

#include <QtCore/QCoreApplication>
#include<QProcess>
#include<stdio.h>
class TIMEOUT{
public:
signals:
    void timeout();
};
void TIMEOUT::timeout(){
//Help me code there. Thanks
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
QProcess proc;
TIMEOUT timeout;
QObject::connect(&proc, SIGNAL(timeout.timeout()),&a, SLOT(quit()));
proc.execute("C:\\Tesst.exe");
printf("Hello");
proc.waitForFinished(1000);
    return a.exec();
}

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thanks