What is the difference between QProcess::start and QProcess::startDetached?

Question

The Qt documentation gives this explanation:

• QProcess::start:

  Starts the given program in a new process, if none is already

Answer 1

If you use start, termination of the caller process will cause the termination of the called process as well. If you use startDetached, after the caller is terminated, the child will continue to live. For example:

QProcess * p = new QProcess();
p->start("some-app");
delete p;// <---some-app will be terminated

QProcess * p = new QProcess();
p->startDetached("some-app");
delete p;// <---some-app will continue to live