Figure 4: Request class for the sample application
#ifndef REQUEST_H #define REQUEST_H #include "resultIOU.h" #include "error.h" struct IRequest; struct IResultIOUReadable; class IOUSink; class Request : public SupportsErrorInfo { public: Request(); ~Request(); bool select(BSTR selectStatement); bool send(bool notify, ResultIOU& IOU); protected: virtual void getErrorInfoParams(IUnknown *&pUnk, const IID *&riid) const; private: IOUSink* createAndConnectSink (IResultIOUReadable *pResultIOU); const Request& operator=(const Request&); Request(const Request&); mutable IRequest *pRequest_; };