The MAKEPOINTS macro converts a value that contains the x- and y-coordinates of a point into a POINTS structure.
POINTS MAKEPOINTS(
  DWORD dwValue  // coordinates of a point
);
 The return value is a pointer to a POINTS structure.
The MAKEPOINTS macro is defined as follows:
#define MAKEPOINTS(l)   (*((POINTS FAR *) & (l))) 
 
  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in wingdi.h.
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