// video.h
VIDEOPORT_API VOID VideoPortQuerySystemTime(
[out] OUT PLARGE_INTEGER CurrentTime
);
View the official Windows Driver Kit DDI referenceNo description available.
The VideoPortQuerySystemTime function obtains the current system time.
CurrentTime [out]Pointer to a memory location that will receive the current system time.
None
System time is a count of 100-nanosecond intervals since January 1, 1601. System time is typically updated approximately every ten milliseconds. This value is computed for the GMT time zone. To adjust this value for the local time zone use ExSystemTimeToLocalTime.
VideoPortQueryPerformanceCounter