/////////////////////////////////////////////////////////////////
//  CComClient.cpp -  client for component IPersistFile        //
//                    uses CComQIPtr and CComBSTR              //
//                                                             //
//  Platform:     Dell Dimension 8100, Windows 2000, SP2       //
//  Application:  Demonstration of ATL 7.0 for CSE775          //
//  Modified:     Jim Fawcett, Syracuse Univ, CST 2-187        //
//                (315) 443-3948, fawcett@ecs.syr.edu          //
/////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include <string>
#include <iostream>
#include "_simple.h"
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
  cout << "\n  Testing in-proc component implementing IPersistFile"
       << "\n              State is a name and a color "
       << "\n =====================================================\n" << endl;

  if(argc < 3)
  {
    cout << "\n  Please enter a name and color on the command line\n\n";
    return 1;
  }

  // Initialize COM Library
  CoInitialize(NULL) ;

  wstring prefix = L"\n  Client: \t";
  try
  {
    CComQIPtr<Isimpletest> pIsimpletest;
    pIsimpletest.CoCreateInstance(__uuidof(Csimpletest));
      
      // note: Used as instance, not as smart pointer, e.g.: dot notation

    if(pIsimpletest)
    {
      CComQIPtr<IPersistFile> pIPFile;
      pIsimpletest->QueryInterface(__uuidof(IPersistFile),(void**)&pIPFile);
      if(pIPFile)
      {
        wcout << prefix << L"acquired IPersistFile\n";
        pIPFile->Load(L"temp.stg",0);

//
        BSTR oldName;
        BSTR oldColor;
        pIsimpletest->GetName(&oldName);
        pIsimpletest->GetColor(&oldColor);
        wcout << prefix << L"old name:  " << oldName;
        wcout << prefix << L"old color: " << oldColor;

        CComBSTR name = argv[1];
        wcout << prefix << L"sending: " << (wchar_t*)name;
        HRESULT hr;
        hr = pIsimpletest->SetName(name);
        if(!SUCCEEDED(hr))
          throw "call to SetName(BSTR) failed";

        CComBSTR color = argv[2];
        hr = pIsimpletest->SetColor(color);
        if(!SUCCEEDED(hr))
          throw "call to SetColor(BSTR) failed";
        wcout << prefix << L"sending: " << (wchar_t*)color << endl;

        pIPFile->Save(L"temp.stg",true);
      }
      else
        wcout << prefix << L"query for IPersistFile failed";
    }
    else
    {
      throw "could not create Isimpletest instance";
    }
  }
  catch(const char* msg)
  {
    cout << "\n  " << msg << "\n\n";
  }

  // Uninitialize COM Library
  //   Note: If you declare CComQIPtr in the same scope as CoInitialize
  //   and CoUninitialize(), then you must call pIString.Release() before
  //   calling CoUninitialize().  If declared in a nested scope, as here, 
  //   the destructor, ~CComQIPtr() will call release for you, when it 
  //   leaves the inner scope.

  CoUninitialize() ;

  cout << "\n\n";
  return 0 ;
}