[This is preliminary documentation and subject to change.]
The CIEXYZ structure contains the x, y, and z coordinates of a specific color in a specified color space.
typedef struct tagCIEXYZ
{
    FXPT2DOT30 ciexyzX; 
    FXPT2DOT30 ciexyzY; 
    FXPT2DOT30 ciexyzZ; 
} CIEXYZ;
typedef CIEXYZ FAR* LPCIEXYZ; 
 
  Windows NT: Requires version 4.0 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in wingdi.h.
Color Management Overview, ICM 2.0 Structures