//0x10 bytes (sizeof)
struct _IO_IRP_EXT_TRACK_OFFSET_HEADER
{
USHORT Validation; //0x0
USHORT Flags; //0x2
VOID (*TrackedOffsetCallback)(struct _IO_IRP_EXT_TRACK_OFFSET_HEADER* arg1, struct _IO_IRP_EXT_TRACK_OFFSET_HEADER* arg2, LONGLONG arg3); //0x8
};