我们在AtlBase.h的头文件中可以看到下面代码：
/
// Connection Point Helpers
ATLINLINE ATLAPI AtlAdvise(IUnknown* pUnkCP, IUnknown* pUnk, const IID& iid, LPDWORD pdw)
{
CComPtr<IConnectionPointContainer> pCPC; //连接点的容器，或者叫事件的服务端
CComPtr<IConnectionPoint> pCP; //连接点对象
HRESULT hRes = pUnkCP->QueryInterface(IID_IConnectionPointContainer, (void**)&pCPC);
if (SUCCEEDED(hRes))
hRes = pCPC->FindConnectionPoint(iid, &pCP); //找到连接点
if (SUCCEEDED(hRes))
hRes = pCP->Advise(pUnk, pdw); //挂接
return hRes;
}
ATLINLINE ATLAPI AtlUnadvise(IUnknown* pUnkCP, const IID& iid, DWORD dw)
{
CComPtr<IConnectionPointContainer> pCPC;
CComPtr<IConnectionPoint> pCP;
HRESULT hRes = pUnkCP->QueryInterface(IID_IConnectionPointContainer, (void**)&pCPC);
if (SUCCEEDED(hRes))
hRes = pCPC->FindConnectionPoint(iid, &pCP);
if (SUCCEEDED(hRes))
hRes = pCP->Unadvise(dw);
return hRes;
}
写的很精练，职能指针用的比较多！hoho！
看到有意思的东西就把它记下来，分享给大家！
