struct _IO_IRP_EXT_TRACK_OFFSET_HEADER// Size=0x10
{
    unsigned short Validation;// Offset=0x0 Size=0x2
    unsigned short Flags;// Offset=0x2 Size=0x2
    void  ( * TrackedOffsetCallback)(struct _IO_IRP_EXT_TRACK_OFFSET_HEADER * ,struct _IO_IRP_EXT_TRACK_OFFSET_HEADER * ,long long );// Offset=0x8 Size=0x8
};