Convert NT file time to Win32 time

I need to convert the LARGE_INTEGER CreationTime member in this structure to the FILETIME ftCreationTime member in this structure. The times are in different formats so simply casting it does开发者_开发百科 not work, is there any documentation on what format NT API uses for file time and how I could convert it?

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They are the same representation, just different structures. You can either memcpy it across or manual assignment:

FILETIME ft;
LARGE_INTEGER creationTime;

memcpy(&ft, &creationTime, sizeof(ft));

or

FILETIME ft;
LARGE_INTEGER creationTime;

ft.dwLowDateTime = creationTime.LowPart;
ft.dwHighDateTime = creationTime.HighPart;