client.cpp

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#define _WIN32_DCOM
#include <iostream.h>
#include <stdio.h>
#include "component\component.h" // Generated by MIDL

const CLSID CLSID_InsideCOM = {0x10000002,0x0000,0x0000,{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}};

void main()
{
    IUnknown* pUnknown;
    ISum* pSum;

    HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
    if(FAILED(hr))
        cout << "CoInitializeEx failed. " << endl;

    hr = CoCreateInstance(CLSID_InsideCOM, NULL, CLSCTX_INPROC_SERVER, 
        IID_IUnknown, (void**)&pUnknown);
    if(FAILED(hr))
        cout << "CoCreateInstance failed. " << endl;

    hr = pUnknown->QueryInterface(IID_ISum, (void**)&pSum);
    if(FAILED(hr))
        cout << "IID_ISum not supported. " << endl;

    pUnknown->Release();

    int sum;
    hr = pSum->Sum(2, 3, &sum);
    if(SUCCEEDED(hr))
        cout << "Client: Calling Sum(2, 3) = " << sum << endl;


	IMoniker* pObjrefMoniker = 0;
	CreateObjrefMoniker(pUnknown, &pObjrefMoniker);

	IBindCtx* pBindContext = 0;
	CreateBindCtx(0, &pBindContext);
	OLECHAR* pString;
	pObjrefMoniker->GetDisplayName(pBindContext, NULL, &pString);

	wprintf(L"\nDisplay name of objref moniker for pUnknown is \n%s\n\n", pString);

	cout << "Binding to object named by the objref moniker display name" << endl;
	ISum* pSum2 = 0;
	BIND_OPTS bopts = { 0, 0, 0, 0 };
	hr = CoGetObject(pString, &bopts, IID_ISum, (void**)&pSum2);

	CoTaskMemFree(pString);

    hr = pSum2->Sum(5, 4, &sum);
	pSum2->Release();
	
	pSum->Release();

	pObjrefMoniker->Release();

    CoUninitialize();
}