calculate.cpp

COM组件接口继承的Visual C++实现

// CalCulate.cpp : Implementation of CCalCulate
#include "stdafx.h"
#include "Test1.h"
#include "CalCulate.h"

/////////////////////////////////////////////////////////////////////////////
// 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;
}