This enumerated type is used within the ICC_HEADER structure to indicate the profile class.
typedef enum
{
InputClass = 0x73636E72L, /* 'scnr' */
DisplayClass = 0x6D6E7472L, /* 'mntr' */
OutputClass = 0x70727472L, /* 'prtr' */
DeviceLinkClass = 0x6C696E6BL, /* 'link' */
AbstractClass = 0x61627374L, /* 'abst' */
ColorSpaceClass = 0x73706163L, /* 'spac' */
NamedColorClass = 0x6E6D636CL /* 'nmcl' */
} ICCPROFILECLASS;