///////////////////////////////////////////////////////////////
//  client.cpp -  client for component inproc3               //
//                                                           //
//  Platform:     Micron Dual Pentium 200, WinNT 4.0, SP3    //
//  Application:  Demonstration for CSE791 - Distrib. Objs   //
//  Authors:      Eddon & Eddon, Inside Distributed COM,     //
//                Microsoft Press, 1998                      //
//  Modified:     Jim Fawcett, Syracuse Univ, CST 2-187      //
//                (315) 443-3948, fawcett@ecs.syr.edu        //
///////////////////////////////////////////////////////////////

#include <string>
#include <iostream>
#include <objbase.h>
#include "cmpnt.h"
using namespace std;

int main()
{

  cout << "\n  Testing in-proc component that uses IDL "
       << "\n          to define its interfaces        "
       << "\n =========================================\n" << endl;

  // Initialize COM Library
  CoInitialize(NULL) ;

  string prefix = "  Client: \t\t";
  cout << prefix + "Call to CoCreateInstance to create" << endl;
  cout << prefix + "  component and get interface ISum." << endl;
  ISum* pISum = NULL ; 
  HRESULT hr = ::CoCreateInstance(CLSID_CSE791,
                                  NULL, 
                                  CLSCTX_INPROC_SERVER,
                                  IID_ISum, 
                                  (void**)&pISum) ;
  if (SUCCEEDED(hr))
  {
    cout << prefix + "Succeeded getting ISum." << endl;
    int z;
    hr = pISum->Sum(3,4,&z) ;
    if(SUCCEEDED(hr))
      cout << prefix + "received " << z << " as sum of 3 and 4" << endl;
    else
      cout << prefix + "Client:   call to Sum failed" << endl;
  }
  else
  {
    cout << prefix + "Could not get interface ISum." << endl;
  }

  cout << prefix + "Release ISum interface." << endl;
  pISum->Release() ;

  // Uninitialize COM Library
  CoUninitialize() ;

  cout << endl;
  return 0 ;
}