public: HighResolutionSystemTime() : pFunc(nullptr) HMODULE hKernel32 = GetModuleHandleW(L"kernel32.dll"); if (hKernel32) pFunc = (GetSystemTimePreciseAsFileTime_t)GetProcAddress( hKernel32, "GetSystemTimePreciseAsFileTime");
No, GetSystemTimePreciseAsFileTime is not available on Windows 7. It was introduced in Windows 8 and Windows Server 2012. getsystemtimepreciseasfiletime windows 7
If you need guaranteed microsecond-precise absolute time across all Windows 7 configurations, you must implement the manual QPC + system time mapping. But if you can control your environment (e.g., internal enterprise deployment with updates enforced), GetSystemTimePreciseAsFileTime is the cleanest, most elegant solution available for the Windows 7 era. internal enterprise deployment with updates enforced)
int main() // Get the current system time SYSTEMTIME st; GetSystemTime(&st); GetSystemTimePreciseAsFileTime is the cleanest