HRESULT STDMETHODCALLTYPE
CAAFSourceClip::SetFade (aafInt32 fadeInLen,
aafFadeType_t fadeInType,
aafInt32 fadeOutLen,
aafFadeType_t fadeOutType)
{
HRESULT hr;
ImplAAFSourceClip * ptr;
ImplAAFRoot * pO;
pO = GetRepObject ();
assert (pO);
ptr = static_cast<ImplAAFSourceClip*> (pO);
assert (ptr);
//
// set up for fadeInType
//
if (! Is_aafFadeType_t_Valid(fadeInType))
return AAFRESULT_INVALID_ENUM_VALUE;
//
// set up for fadeOutType
//
if (! Is_aafFadeType_t_Valid(fadeOutType))
return AAFRESULT_INVALID_ENUM_VALUE;
try
{
hr = ptr->SetFade
(fadeInLen,
fadeInType,
fadeOutLen,
fadeOutType);
}
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;
}
return hr;
}
