Echelon OpenLDV - Manual (Page 100)

92 The OpenLDV Developer Example
Developer Example Diagram
Figure 7 shows the hierarchy of the classes described in this chapter.
ldv32.dll
ldv_open, ldv_close, ldv_read, ldv_write,
ldv_register_event
COpenLDVapi
Open, Close, Read, Write,
RegisterEvent, UnregisterEvent
COpenLDVreader
Start, Stop, Pause
PQueue<>
push, front, pop
COpenLDVtrace
Open, Close, Read, Write,
RegisterEvent, UnregisterEvent
COpenLDVni
NiInit, NiClose, NiSendMsgWait, NiSendResponse,
NiSendImmediate, …
NiPauseMessagePump, NiContinueMessagePump
NiDispatch
COpenLDVmessagePump
Start, Stop, Pause
COpenLDVexampleDispatcher
NiDispatch
COpenLDVtools
QueryDomain, LeaveDomain, ...
ldv_register_event ::SetEvent
(Un-)RegisterEvent ::SetEvent
NiDispatch
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Figure 7. OpenLDV Developer Example Class Hierarchy