class CCTMXObjectGroup : public CCObject { void setPositionOffset(CCPoint pt); CCPoint getPositionOffset(); void setProperties(CCDictionary* pval); CCDictionary* getProperties(); void setObjects(CCArray* val); CCArray* getObjects(); void setGroupName(const char *groupName); const char* getGroupName(); CCString *propertyNamed(const char* propertyName); CCDictionary* objectNamed(const char *objectName); };