Point structure

#include <Types.h>

typedef struct Point { Size Offset Description

short v; 2 0 Vertical coordinate

short h; 2 2 Horizontal coordinate

typedef Point Cell; (used in List Manager calls)

typedef Point *PointPtr;

Notes: Use SetPt to initialize a Point data structure, or simply assign values to

the members directly.

Note: This structure is 32-bits with the v value in the hi word and

the h value in the low word. In many cases, you may be able to optimize

by using 32-bit register operations. You may also want to coerce a

long (eg, the value returned by DeltaPoint) into a Point for easier

handling.

The Point (a.k.a. Cell ) structure is used in calls to:

In some cases, a Point is used to specify a height and width (as in the

cellSize field of a ListRec structure) or a vertical and horizontal distance

(as in SubPt). In these cases, the .h field is always a width (or horizontal

delta) and .v is always a height (or vertical delta).