A macro to define a NULL InterfaceItem element to signify the end of the InterfaceMap.
ProjectData
ProjectDataSTRUCT
m_DataItem1DWORD ?
m_DataItem2 DWORD ?
m_DataItem3 DWORD ?
m_DataItem4 DWORD ?
ProjectData ENDS
ProjectData is given as an example only. Each class must have an object data structure to hold its custom members. ProjectData is an example of the layout of this structure