Function
Returns the subclass of a Group Object.
Syntax
#include <dx/dx.h>
Class DXGetGroupClass(Group g)
Functional Details
Returns the subclass of a Group Object g. This will be CLASS_GROUP if the Object is a generic Group Object, or either CLASS_SERIES, CLASS_MULTIGRID, or CLASS_COMPOSITEFIELD if the Object class is a subclass of Group.
A CLASS_GROUP Object and its subclasses contain other Objects that are referred to as members. The members of a CLASS_GROUP Object can be of any class and are not restricted as to type, whereas the CLASS_SERIES, CLASS_MULTIGRID, and CLASS_COMPOSITEFIELD generally contain members of TYPE_FIELD, and they assume the type of the first typed member to be added and are untyped if empty. All of the subclasses require that the type of all its members is the same; see DXSetGroupType. A CLASS_SERIES is generally used to maintain time-variant data, whereas the CLASS_COMPOSITEFIELD and CLASS_MULTIGRID are used to maintain spatially partitioned data within a single field.
| Note: | A Group can be structured to take advantage of more than one Group class. For example, one could have a Series of Composite Fields where each Series member is a Field that has been partitioned into a Composite Field. |
Return Value
Returns the subclass of a Group Object or returns an undefined value if g is not a Group. The subclass returned will be:
See Also
DXGetObjectClass, DXNewCompositeField, DXNewGroup, DXNewMultiGrid, DXNewSeries