// ks.h
typedef struct {
LONGLONG Time;
LONGLONG SystemTime;
} KSCORRELATED_TIME, *PKSCORRELATED_TIME;
View the official Windows Driver Kit DDI referenceNo description available.
The KSCORRELATED_TIME structure contains a clock time as well as the corresponding number of clock ticks since system boot.
TimeSpecifies the current clock time in 100-nanosecond units.
SystemTimeA 64-bit integer containing the number of clock ticks since system boot.
Supply this structure in a KSPROPERTY_CLOCK_CORRELATEDTIME property request.
The system time is acquired from KeQueryPerformanceCounter. Note that the performance counter is not suspended when the machine is suspended, so that correlations change when the machine goes through a suspend.
KSPROPERTY_CLOCK_CORRELATEDTIME