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.