MAKEPOINT

2.x

The MAKEPOINT macro converts a long value that contains the x- and y-coordinates of a point into a POINT structure. This macro is useful for converting the long value returned by the GetMessagePos function into a POINT structure and for converting the lParam value passed with mouse messages into a POINT structure containing the mouse coordinates.

Parameters

lval

Specifies the coordinates of a point. The x-coordinate is in the low-order word, and the y-coordinate is in the high-order word.

Return Value

The return value is a pointer to a POINT structure.

Comments

The MAKEPOINT macro is defined in WINDOWS.H as follows:

#define MAKEPOINT(l)  (*((POINT FAR*)&(l)))

The POINT structure has the following form:

typedef struct tagPOINT {   /* pt */
   int x;
   int y;
} POINT;

The MAKEPOINT macro is not compatible with the Windows 32-bit application programming interface (API).

See Also

GetMessagePos