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MyAbc.cpp
Package: code_and_note_of_COM.rar [view]
Upload User: weisheen
Upload Date: 2022-07-09
Package Size: 19390k
Code Size: 1k
Category:
ActiveX-DCOM-ATL
Development Platform:
Visual C++
- // MyAbc.cpp : Implementation of CMyAbc
- #include "stdafx.h"
- #include "DemoError.h"
- #include "MyAbc.h"
- /////////////////////////////////////////////////////////////////////////////
- // CMyAbc
- //(自动生成的)支持异常的接口函数
- STDMETHODIMP CMyAbc::InterfaceSupportsErrorInfo(REFIID riid)
- {
- static const IID* arr[] =
- {
- &IID_IMyAbc
- };
- for (int i=0; i < sizeof(arr) / sizeof(arr[0]); i++)
- {
- if (InlineIsEqualGUID(*arr[i],riid))
- return S_OK;
- }
- return S_FALSE;
- }
- STDMETHODIMP CMyAbc::div(int a, int b, int *c)
- {
- AFX_MANAGE_STATE(AfxGetStaticModuleState())
- // TODO: Add your implementation code here
- if(b==0)
- {
- CString str("b can not be zero!");
- this->Error(str.AllocSysString());//错误异常提示
- return S_FALSE;
- }
- else
- {
- *c=a/b;
- return S_OK;
- }
- }