int wmain()
{
// CoInitialize(NULL);
CoInitializeEx(NULL, COINIT_MULTITHREADED);
IInventory* pInv = NULL;
HRESULT hr = CoCreateInstance(CLSID_Trader, NULL, CLSCTX_INPROC_SERVER, IID_IInventory, reinterpret_cast<LPVOID*>(&pInv));
if(SUCCEEDED(hr))
{
int qty;
double bal;
wcout << L"Number of items to purchase : ";
wcin >> qty;
hr = pInv->Buy(qty, 100);
if(FAILED(hr))
wcout << L"Buy operation failed with error code of " << hex << hr << endl;
else
{
IAccount* pAcc = NULL;
pInv->QueryInterface(IID_IAccount, reinterpret_cast<LPVOID*>(&pAcc));
pInv->GetStock(&qty);
pAcc->GetBalance(&bal);
wcout << L"Current stock : " << qty << endl;
wcout << L"Current balance : " << bal << endl;
pAcc->Release();
}
pInv->Release();
}
else
