copy
//0x8 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); //0x4
};