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VC++实现COM事件接收器发表日期：2008-3-8
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1、给程序添加ATL支持。
右键->New ATL Object
2、实现IDispEventImpl 接口。
//EventSink.h
#import "..\Server\Debug\Server.exe" raw_interface_only,no_namespace,named_guids
class CEventSink :
public IDispEventImpl<0, CEventSink,&DIID__IObjEvents,&LIBID_SERVERLib, 1, 0> { public: CEventSink() { } public: BEGIN_SINK_MAP(CEventSink) SINK_ENTRY_EX(0, DIID__IObjEvents, 1, cbFunc01) END_SINK_MAP() STDMETHOD(cbFunc01)(); }; //EventSink.cpp #include "stdafx.h" #include "EventSink.h" STDMETHODIMP CEventSink::cbFunc01() { AfxMessageBox("called by Event from dll Server !"); return S_OK; } 3、连接对象 // ClientDlg.cpp : implementation file // #include "EventSink.h" void CClientDlg::OnButton1() { // TODO: Add your control notification handler code here ::CoInitialize(NULL); { IObjPtr pObj; CEventSink *pEventSink= new CEventSink; pObj.CreateInstance(__uuidof(Obj)); pEventSink->DispEventAdvise(pObj); pObj->Func01(); pEventSink->DispEventUnadvise(pObj); delete pEventSink; } ::CoUninitialize(); } |
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