/////////////////////////////////////////////////////////////////
//  CComClient.cpp -  client for component ATLDemo7            //
//                    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 "..\Q1\stdafx.h"
#include <string>
#include <iostream>
#include "..\Q1\Q1.h"
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
  wcout << L"\n  Using Array of BSTRs to pass Semi-Expressions "
        << L"\n ===============================================\n" << endl;

  // Initialize COM Library
  CoInitialize(NULL) ;

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

    if(pSF)
    {
      CComBSTR file = "CComClient.cpp";
      wcout << L"Processing file: " << (wchar_t*)file << endl;
      HRESULT hr;
      hr = pSF->putFile(file);
      if(!SUCCEEDED(hr))
        throw "call to putFile(BSTR) failed";

      ULONG size = 0;
      do
      {
        BSTR* pBSTR = 0;
        hr = pSF->get(&size, &pBSTR);
        if(!SUCCEEDED(hr))
          throw "call to get(UINT*, BSTR**) failed";
        else
        {
          wcout << "\n";
          for(ULONG i = 0; i<size; ++i)
          {
            BSTR bstr = pBSTR[i];
            const char* token = (COLE2T)CComBSTR(bstr);
            if(token[0] != '\n')
              wcout << token << " ";
            SysFreeString(pBSTR[i]);
          }
          CoTaskMemFree(pBSTR);
        }
      } while(size > 0);
      wcout << endl;
    }
    else
    {
      throw "could not create ScanFile 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 ;
}