Custom Interface COM 클라이언트

objbase.h

#if (_WIN32_WINNT >= 0x0400 ) || defined(_WIN32_DCOM) // DCOM
WINOLEAPI CoInitializeEx(LPVOID pvReserved, DWORD dwCoInit);
#endif // DCOM

CoInitialize()
CoUninitialize()
CoCreateInstance()

COM 개체를 생성하고 인터페이스 포인터를 얻는다.
생성된 개체는 인터페이스 포인터에 레퍼런스 카운트된다.

IUnknown

.QueryInterface()
.AddRef()
.Release()

// C++

DECLARE_INTERFACE_(ICalculator, IDispatch)
{
    STDMETHOD(Add)(THIS_ long a, long b, long *c) PURE;
    STDMETHOD(Sub)(THIS_ long a, long b, long *c) PURE;
};

// {9154D4FB-5D9D-4ADE-9E8C-03664F4A363B}
const CLSID CLSID_Calculator =
    {0x9154D4FB, 0x5D9D, 0x4ADE, 0x9E, 0x8C, 0x03, 0x66, 0x4F, 0x4A, 0x36, 0x3B};

// { 6D1D01A7-1364-47B5-94D9-D6389467FB44}
const IID IID_Calculator =
    {0x6D1D01A7, 0x1364, 0x47B5, 0x94, 0xD9, 0xD6, 0x38, 0x94, 0x67, 0xFB, 0x44};

#include "ICalculator.h"

class CCalcClientDlg : public CDialog
{
...
    // Generated message map functions
    //{{AFX_MSG(CCalcClientDlg)
    ...
    afx_msg void OnAdd();
    ...
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()

private:
    ICalculator *m_ICalculator;
};

BEGIN_MESSAGE_MAP(CCalcClientDlg, CDialog)
    //{{AFX_MSG_MAP(CCalcClientDlg)
    ...
    ON_BN_CLICKED(IDC_ADD, OnAdd)
    ...
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()
...
BOOL CCalcClientDlg::OnInitDialog()
{
...
    SetIcon(m_hIcon, FALSE);        // Set small icon
// {   
    HRESULT hr = CoCreateInstance( CLSID_Calculator, NULL,
        CLSCTX_INPROC_SERVER, IID_Calculator, (void**) &m_ICalculator);
    if(FAILED(hr))
        AfxMessageBox(_T("서버 연결에 실패하였습니다."));
// }   
    return TRUE;  // return TRUE  unless you set the focus to a control
}
...
void CCalcClientDlg::OnAdd()
{
    UpdateData();
    m_ICalculator->Add(m_A, m_B, &m_Result);
    UpdateData(FALSE);
}
...

// 스마트 포인터

#import ".../AtlCalc.tlb" no_namespace

class CSmartPtrClientDlg : public CDialog
{
...
    // Generated message map functions
    //{{AFX_MSG(CSmartPtrClientDlg)
    ...
    afx_msg void OnAdd();
    ...
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()

private:
    ICalculatorPtr m_ICalculatorPtr;
};


BOOL CSmartPtrClientDlg::OnInitDialog()
{
...
    SetIcon(m_hIcon, FALSE);        // Set small icon
// {   
    HRESULT hr = m_ICalculatorPtr.CreateInstance("ATLCalc.Calculator");
    if(FAILED(hr))
        AfxMessageBox(_T("서버 연결에 실패하였습니다."));
// }  
    return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSmartPtrClientDlg::OnAdd()
{
    UpdateData();
    m_ICalculatorPtr->raw_Add(m_lA, m_lB, &m_lResult);
    UpdateData(FALSE);
}

참조 사이트:

http://blog.naver.com/netrance/110052381977