The data packet is a location in application storage where the Touch Display driver returns to the caller the values of the X and Y offsets, which are added to the basic X,Y data before being supplied to the Mouse device-independent driver by way of its absolute IDC entry point. The format is as follows:
┌────────────────────────────────────┐ │Field Length C Datatype │ ├────────────────────────────────────┤ │X offset WORD SHORT │ ├────────────────────────────────────┤ │Y offset WORD SHORT │ └────────────────────────────────────┘