The ULARGE_INTEGER structure is used to specify a 64-bit unsigned integer value.
typedef union _ULARGE_INTEGER {
struct {
DWORD LowPart;
DWORD HighPart;
};
ULONGLONG QuadPart;
} ULARGE_INTEGER;
The ULARGE_INTEGER structure is actually a union. If your compiler has built-in support for 64-bit integers, use the QuadPart member to store the 64-bit integer. Otherwise, use the LowPart and HighPart members to store the 64-bit integer.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winnt.h.
Large Integer Operations Overview, Large Integer Operations Structures, LARGE_INTEGER