LARGE_INTEGER

The LARGE_INTEGER structure is used to represent a 64-bit signed integer value.

Note  Your C compiler may support 64-bit integers natively. For example, Microsoft® Visual C++® supports the __int64 sized integer type. For more information, see the documentation included with your C compiler.

typedef union _LARGE_INTEGER { 
  struct {
      DWORD LowPart; 
      LONG  HighPart; 
  };
  LONGLONG QuadPart;
} LARGE_INTEGER, *PLARGE_INTEGER; 

Members

LowPart

Specifies the low-order 32 bits.

HighPart

Specifies the high-order 32 bits.

QuadPart

Specifies a 64-bit signed integer.

Remarks

The LARGE_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.

Requirements

  Windows NT/2000: Requires Windows NT 3.1 or later.
  Windows 95/98: Requires Windows 95 or later.
  Header: Declared in Winnt.h; include Windows.h.

See Also

File I/O Overview, File I/O Structures, LUID, ULARGE_INTEGER