Getsystemtimepreciseasfiletime Windows 7 Upd __top__ -

if (pGetTimePrecise) FILETIME ft; pGetTimePrecise(&ft); printf("High-res UTC time obtained.\n"); // Convert ft to human-readable if needed... else printf("GetSystemTimePreciseAsFileTime not available (missing KB2670838?)\n"); // Fallback to GetSystemTimeAsFileTime FILETIME ft; GetSystemTimeAsFileTime(&ft);

// Convert remainder to 100-ns units // (remainder * 10000000) / frequency ULONGLONG remainder100ns = (remainderTicks * 10000000) / s_frequency.QuadPart; getsystemtimepreciseasfiletime windows 7 upd

Don't assume it’s present. Use:

If you want, I can provide a complete compilable example (C/C++), a C# P/Invoke version, or a ready-to-run library wrapper — tell me which. if (pGetTimePrecise) FILETIME ft

When GetSystemTimePreciseAsFileTime was introduced with Windows 8 and Windows Server 2012, developers targeting Windows 7 were stuck. Attempting to call this function on an unpatched Windows 7 kernel32.dll would result in a runtime error or, worse, a missing entry point. printf("High-res UTC time obtained.\n")

To resolve this, you can use a fallback strategy in your code or try a system-level workaround for existing software.

Use alternative high-resolution timing strategy (if precise wall-clock UTC is required on Win7)