STDMETHODIMP ShellExtClassFactory::CreateInstance(LPUNKNOWN pUnkOuter,
REFIID riid,
LPVOID *ppvObj)
{
if(ppvObj == 0)
return E_POINTER;
*ppvObj = NULL;
// Shell extensions typically don't support aggregation (inheritance)
if (pUnkOuter)
return CLASS_E_NOAGGREGATION;
// Create the main shell extension object. The shell will then call
// QueryInterface with IID_IShellExtInit--this is how shell extensions are
// initialized.
ShellExt* pShellExt = new ShellExt(status_); // Create the ShellExt object
const HRESULT hr = pShellExt->QueryInterface(riid, ppvObj);
if(FAILED(hr))
delete pShellExt;
return hr;
}
IFACEMETHODIMP Factory::CreateInstance(IUnknown* pUnkOuter, REFIID iid, void** ppv)
{
dump(L"CreateInstance");
if (pUnkOuter) {
dump(L"CreateInstance - NoAggr");
return CLASS_E_NOAGGREGATION;
}
ShellExt* inst = new(std::nothrow) ShellExt();
if (!inst) {
dump(L"CreateInstance - OOM");
return E_OUTOFMEMORY;
}
// Get the requested interface.
HRESULT hr = inst->QueryInterface(iid, ppv);
if (FAILED(hr)) {
dump(L"CreateInstance - Failed");
delete inst;
}
else {
dump(L"CreateInstance - OK");
}
return hr;
}
