Ejemplo n.º 1
0
HRESULT STDMETHODCALLTYPE
    CAAFSourceClip::ResolveRef (IAAFMob ** ppMob)
{
  HRESULT hr;

  ImplAAFSourceClip * ptr;
  ImplAAFRoot * pO;
  pO = GetRepObject ();
  assert (pO);
  ptr = static_cast<ImplAAFSourceClip*> (pO);
  assert (ptr);

  //
  // set up for ppMob
  //
  ImplAAFMob * internalppMob = NULL;
  ImplAAFMob ** pinternalppMob = NULL;
  if (ppMob)
    {
      pinternalppMob = &internalppMob;
    }

  try
    {
      hr = ptr->ResolveRef
       (pinternalppMob);
    }
  catch (OMException& e)
    {
      // OMExceptions should be handled by the impl code. However, if an
      // unhandled OMException occurs, control reaches here. We must not
      // allow the unhandled exception to reach the client code, so we
      // turn it into a failure status code.
      //
      // If the OMException contains an HRESULT, it is returned to the
      // client, if not, AAFRESULT_UHANDLED_EXCEPTION is returned.
      //
      hr = OMExceptionToResult(e, AAFRESULT_UNHANDLED_EXCEPTION);
    }
  catch (OMAssertionViolation &)
    {
      // Control reaches here if there is a programming error in the
      // impl code that was detected by an assertion violation.
      // We must not allow the assertion to reach the client code so
      // here we turn it into a failure status code.
      //
      hr = AAFRESULT_ASSERTION_VIOLATION;
    }
  catch (...)
    {
      // We CANNOT throw an exception out of a COM interface method!
      // Return a reasonable exception code.
      //
      hr = AAFRESULT_UNEXPECTED_EXCEPTION;
    }

  //
  // cleanup for ppMob
  //
  if (SUCCEEDED(hr))
    {
      IUnknown *pUnknown;
      HRESULT hStat;

      if (internalppMob)
        {
          pUnknown = static_cast<IUnknown *> (internalppMob->GetContainer());
          hStat = pUnknown->QueryInterface(IID_IAAFMob, (void **)ppMob);
          assert (SUCCEEDED (hStat));
          //pUnknown->Release();
          internalppMob->ReleaseReference(); // We are through with this pointer.
        }
    }
  return hr;
}