cfxImportBegCompReg()
char *regionName;

Begin defining a composite region with the name regionName,

Returns -1 if a primitive region regionName is already defined or memory couldn’t be allocated, or 0 if successfully created.

int cfxImportAddCompRegComponents(componentCount,components)
int componentCount;
char **components;

Add a set of component region names specified in components to the composite region currently being defined. componentCount specified how many components are specified in the components array,

Returns -1 if a composite region is not being defined or insufficient memory is available to add the components of the composite region, or 0 if the components were successfully added.

int cfxImportEndCompReg()

Finish defining the current composite region.

Returns -1 if a composite region is not currently being defined or 0 otherwise.

int cfxImportCompositeRegion(regionName, componentCount, components)
char *regionName, **components;
int componentCount;

Define a composite region named regionName with componentCount components supplied in character array components.

Returns 0 if successful or -1 if an error occurred preventing the composite region being defined.