ICCPROFILECLASS

typedef enum
{
    InputClass = 0x73636E72L,   /* 'scnr' */
    DisplayClass = 0x6D6E7472L,   /* 'mntr' */
    OutputClass = 0x70727472L,   /* 'prtr' */
    DeviceLinkClass = 0x6C696E6BL,   /* 'link' */
    AbstractClass = 0x61627374L,   /* 'abst' */
    ColorSpaceClass = 0x73706163L,   /* 'spac' */
    NamedColorClass = 0x6E6D636CL    /* 'nmcl' */
} ICCPROFILECLASS;

This enumerated type is used within the ICCHEADER structure to indicate the profile class.