Attributes

The examples below show how to get and set attributes.

Setting an Attribute

When setting an attribute, the KcsProfile object in the KcsProfile object array passes the setting of the attribute to the KcsAttributeSet object contained in its KcsProfileFormat object. This is illustrated in Figure 3-2 and in the KCMS API code excerpt shown in Example 3-7.

Example 3-7 Setting an Attribute

/* double2icFixed

converts a double float to a signed 15 16 fixed point   * number */ /* Set

white point */ test_double[] = 0.2556; test_double[1] = 0.600189;

test_double[2] = 0.097794; attrValue.base.countSupplied = 1

attrValue.base.type = icSigXYZType; attrValue.base.sizeof(icXYZNumber);

attrValue.val.icXYZ.[0].X = double2icfixed(test_double[0], 

		icSigS15Fixed16ArrayType); attrValue.val.icXYZ.[0].Y =

double2icfixed(test_double[1],  		icSigS15Fixed16ArrayType);

attrValue.val.icXYZ.[0].Z = double2icfixed(test_double[2], 

		icSigS15Fixed16ArrayType); rc = KcsSetAttribute(profileid,

icSigMediaWhitepointTag, &attrValue); if (rc != KCS_SUCCESS {

	KcsGetLastError(&errDesc); 	fprintf(stderr, "unable to set

whitepoint: %s\n", errDesc.desc); 	KcsFreeProfile(profileid); 	return

(-1); }

Getting an Attribute

When getting an attribute, the KcsProfile object in the array passes the getting of the attribute to the KcsAttributeSet object contained in its KcsProfileFormat object (replacing set with get). This is illustrated in Figure 3-2 and in the KCMS API code excerpt shown in Example 3-8.

Example 3-8 Getting an Attribute

/* Get the colorants */

/* icfixed2double converts signed 15.16 fixed point number to a double   *

float */ /*Red */ attrValuePtr = (KcsAttributeValue *)

malloc(sizeof(KcsAttributeBase) +  	sizeof(icXYZNumber));

attrValuePtr->base.type = icSigXYZArrayType;

attrValuePtr->base.countSupplied = 1; status = KcsGetAttribute(profileid,

icSigRedColorantTag, attrValuePtr); if (status != KCS_SUCCESS) { 	status =

KcsGetLastError(&errDesc); 	printf("GetAttribute error: $s\n",

errDesc.desc); 	KcsFreeProfile(profileid); 	exit(1); }  XYZval = (icXYZNumber

*)attrValuePtr->val.icXYZ.data; printf("Red X=%f Y=%f Z=%f\n", 

		icfixed2double(XYZval->X, icSigS15Fixed16ArrayType), 

		icfixed2double(XYZval->Y, icSigS15Fixed16ArrayType),     

icfixed2double(XYZval->Z, icSigS15Fixed16ArrayType),