www.gusucode.com > VC++中COM组件接口继承的实现(生成DLL)-源码程序 > VC++中COM组件接口继承的实现(生成DLL)-源码程序\code\CalCulate.cpp
// CalCulate.cpp : Implementation of CCalCulate #include "stdafx.h" #include "Test1.h" #include "CalCulate.h" // Download by http://www.NewXing.com ///////////////////////////////////////////////////////////////////////////// // CCalCulate STDMETHODIMP CCalCulate::Add(long n1, long n2, long *pVal) { // TODO: Add your implementation code here *pVal = n1 + n2; return S_OK; } STDMETHODIMP CCalCulate::Sub(long n1, long n2, long *pVal) { // TODO: Add your implementation code here *pVal = n1 - n2; return S_OK; }