The Data Packet is a location in application storage where the physical mouse device driver returns to the caller the current mouse scaling factors. The format of the Data Packet is as follows:

┌───────────────────────────────────────┐
│Field           Length     C Datatype  │
├───────────────────────────────────────┤
│Row Data        WORD       USHORT      │
├───────────────────────────────────────┤
│Column Data     WORD       USHORT      │
└───────────────────────────────────────┘