DATASERV (kappserv) functions


LIBRARY ROUTINE

kcolor_get_attribute - get the values of a color attribute from a data object.

LIBRARY CALL

int kcolor_get_attribute(
   kobject  object,
   char    *attribute,
   kvalist)

INPUT

OUTPUT

none

RETURN VALUE

TRUE (1) on success, FALSE (0) otherwise

DESCRIPTION

This function is used to retrieve the value of a a color attribute from a data object.

This color service function should be used in conjunction with other application services such as polymorphic data services and geometry data services. This function will work on data objects opened or created with either of those services.

Attributes are retrieved by passing in the address of a variable by which the attribute can be returned. Note that any array attributes, such as strings, which are retrieved should not be altered or freed. The pointer returned points to the actual internal storage array. A copy should be made if the values need to be changed.

The following example illustrates the use of the get attribute call to retrieve two different color attributes.

char **autocolor_list; int num; int colorspace;

kcolor_get_attribute(object, KCOLOR_AUTOCOLOR_LIST, &list, &num); kcolor_get_attribute(object, KCOLOR_COLORSPACE, &colorspace);

A complete list of color attributes can be found in Chapter 4 of Programming Services Volume II.

ADDITIONAL INFORMATION

none

EXAMPLES

none

SIDE EFFECTS

none

RESTRICTIONS

Calling this function with an incorrect number of arguments in the variable argument list will not cause any compiler errors, but will often generate a segmentation fault.

MODIFICATION

none

FILES

$DATASERV/objects/library/kappserv/src/color.c

SEE ALSO

kappserv(3)

COPYRIGHT

Copyright (C) 1993 - 1997, Khoral Research, Inc. ("KRI") All rights reserved.