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void wrapInFunction()
{
//! [0]
QProcess builder;
builder.setProcessChannelMode(QProcess::MergedChannels);
builder.start("make", QStringList() << "-j2");
if (!builder.waitForFinished())
qDebug() << "Make failed:" << builder.errorString();
else
qDebug() << "Make output:" << builder.readAll();
//! [0]
//! [1]
QProcess more;
more.start("more");
more.write("Text to display");
more.closeWriteChannel();
// QProcess will emit readyRead() once "more" starts printing
//! [1]
//! [2]
command1 | command2
//! [2]
//! [3]
QProcess process1;
QProcess process2;
process1.setStandardOutputProcess(process2);
process1.start("command1");
process2.start("command2");
//! [3]
//! [4]
class SandboxProcess : public QProcess
{
...
protected:
void setupChildProcess();
...
};
void SandboxProcess::setupChildProcess()
{
// Drop all privileges in the child process, and enter
// a chroot jail.
#if defined Q_OS_UNIX
::setgroups(0, 0);
::chroot("/etc/safe");
::chdir("/");
::setgid(safeGid);
::setuid(safeUid);
::umask(0);
#endif
}
//! [4]
//! [5]
QProcess process;
process.start("del /s *.txt");
// same as process.start("del", QStringList() << "/s" << "*.txt");
...
//! [5]
//! [6]
QProcess process;
process.start("dir \"My Documents\"");
//! [6]
//! [7]
QProcess process;
process.start("dir \"\"\"My Documents\"\"\"");
//! [7]
//! [8]
QStringList environment = QProcess::systemEnvironment();
// environment = {"PATH=/usr/bin:/usr/local/bin",
// "USER=greg", "HOME=/home/greg"}
//! [8]
}
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