Qt TwinCAT3中的变量回调函数的时间戳读取方式

官网提供了例程，官网真是个宝库。基本ADS的操作都里面有例程了，但是可能会稍微分散一点，不过多看几遍，也就慢慢整理你所需要的东西出来了。

https://infosys.beckhoff.com/index_en.htm

#include <Windows.h>
#include <conio.h>
#include <winbase.h>

#include <TcAdsDef.h>
#include <TcAdsAPI.h>

void myPAdsNotificationFuncEx(AmsAddr*    pAddr,
                              AdsNotificationHeader* pNotification,
                              unsigned long hUser
                              )
{
    SYSTEMTIME              SystemTime, LocalTime;
    FILETIME                FileTime;
    LARGE_INTEGER           LargeInteger;
    TIME_ZONE_INFORMATION   TimeZoneInformation;

    // Convert the timestamp into SYSTEMTIME
    LargeInteger.QuadPart = pNotification->nTimeStamp;
    FileTime.dwLowDateTime = (DWORD)LargeInteger.LowPart;
    FileTime.dwHighDateTime = (DWORD)LargeInteger.HighPart;
    FileTimeToSystemTime(&FileTime, &SystemTime);

    // Convert the time value Zeit to local time
    GetTimeZoneInformation(&TimeZoneInformation);
    SystemTimeToTzSpecificLocalTime(&TimeZoneInformation, &SystemTime, &LocalTime);

    // Print out the timestamp
    qDebug() << LocalTime.wHour << ":"
             << LocalTime.wMinute << ":"
             << LocalTime.wSecond << '.'
             << LocalTime.wMilliseconds;

    //这样子不行，貌似Qt不支持这种timeStamp
    //qDebug() << QDateTime::fromTime_t(pNotification->nTimeStamp);
}