ICCSTANDARDILLUMINANT

typedef enum
{
    IccIlluminantUnknown = 0x00000000L, 
    IccIlluminantD50 = 0x00000001L, 
    IccIlluminantD65 = 0x00000002L, 
    IccIlluminantD93 = 0x00000003L, 
    IccIlluminantF2 = 0x00000004L, 
    IccIlluminantD55 = 0x00000005L, 
    IccIlluminantA = 0x00000006L, 
    IccIlluminantEquiPowerE = 0x00000007L, 
    IccIlluminantF8 = 0x00000008L
} ICCSTANDARDILLUMINANT;

This enumerated type is used within the ICC_MEASUREMENT structure to indicate the standard illuminant encoding.