qt-读取和修改系统时间

qt-读取和修改系统时间

QTime ct = QTime::currentTime();

修改系统时间

// change the system time

QDateTime dt = QDateTime::currentDateTime();

dt.setTime(timeEditor->time());

time_t tt = (time_t)dt.toTime_t();

int r = stime(&tt);

if (r)

{

if (errno == EPERM)

QMessageBox::warning(this, "Error", "You don't have permission to change system time.");

}