Qt start new application and quit

Hello! I posted my issue on stackoverflow: http://stackoverflow.com/questions/2...93521_27736976
I have no idea how to run other application in background from main application. Every time main application is quitting, applications started by it are closed too.

I have tried to use Q_DESTRUCTOR_FUNCTION to run process after main() is processing, without result. I also tried a lot of function:

Code:

---

void closeApp()
{
    QProcess test;
    if(test.startDetached("cmd.exe &"))
        qDebug() << "Running";
    QProcess::execute("cmd.exe");
    system("start cmd.exe &");
    system("cmd.exe &");
    execl("start cmd.exe", "ls", "-r", "-t", "-l", (char *) 0);
    system("cmd.exe");
    FILE* pd = popen("cmd.exe &", "r");
}
 
Q_DESTRUCTOR_FUNCTION(closeApp)

---

Is it possible to launch and keep process by running from main application?
edit: ok, the problem was debugger .. outside it all works great with simple QProcess::startDetached("xxx");

Yes, it is possible using QProcess::startDetached() and passing it a path to a valid executable and optionally arguments and a working directory.
This code works just fine:

Code:

---

#include <QCoreApplication>
#include <QProcess>
#include <QDebug>
 
int main(int argc, char **argv) {
	QCoreApplication app(argc, argv);
 
	bool ok = QProcess::startDetached("notepad.exe");
	qDebug() << ok;
	return 0;
}

---

with a Windows notepad left running after program exit.

Yeah you're right, but this works only outside debugger. If you try to debug it, it won't work.

It works fine here when run in the Gnu Debugger (Qt 4.8.4 MingW)