Upd — Getsystemtimepreciseasfiletime Windows 7

GetSystemTimePreciseAsFileTime is a Windows API that returns the current system time with high precision. It was introduced in Windows 8 / Windows Server 2012 and is not available on stock Windows 7. Below are practical options and code patterns to achieve high-resolution time on Windows 7 and how to handle calls safely if you must run on multiple Windows versions.

Threading and reentrancy

, this function is designed to provide the highest possible level of precision (less than 1 microsecond) for the current system date and time. Before this, developers typically used GetSystemTimeAsFileTime getsystemtimepreciseasfiletime windows 7 upd

if (pGetSystemTimePreciseAsFileTime) pGetSystemTimePreciseAsFileTime(ftOut); else GetSystemTimeAsFileTime(ftOut); // Optional: Improve resolution artificially with high-performance sleep // But that's a separate challenge getsystemtimepreciseasfiletime windows 7 upd