I am running a Qt app that launches a process. (The Assistant, launched from the main app).
When I close the app, I get the warning
QProcess: Destroyed while process is still running.
How can I get rid of it ?
I saw this similar question and tried to kill... Nothing happened.
This question seems to say maybe I should add waitForFinished()... Help won't close when app does.
Help::Help():m_helpProcess(0) {}
Help::~Help()
{
if (m_helpProcess) {
m_helpProcess.waitForFinished(); // help stays open after app closes
m_helpProcess->kill(); // added with no effect
delete m_helpProcess;
}
}
bool Help::start()
{
if (!m_helpProcess)
process = new QProcess();
QStringList args;
args << QLatin1String("-collectionFile")
<< QLatin1String("mycollection.qhc");
process->start(QLatin1String("Assistant.app"), args);
if (!process->waitForStarted())
return;
}
It should be sufficient to rewrite the destructor using close()
:
Closes all communication with the process and kills it. After calling this function, QProcess will no longer emit readyRead(), and data can no longer be read or written.
Help::~Help()
{
if (m_helpProcess) {
// m_helpProcess->waitForFinished(); // help stays open after app closes
m_helpProcess->close(); // close channels
delete m_helpProcess; // destructor actually kills the process
}
}
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