Re: Passing SAFEARRAY of SHORTs in event causes EEMessageException

Hi

I'm trying to pass a short array (of audio samples) in an event
of an ATL object but when I invoke the interface an
EEMessageException is thrown. Here's how the event-interface is
declared:

dispinterface IMyAudioEvents
{
properties:
methods:
 [id(1), helpstring("")] void OnUserAudioData([in] LONG nUserID, [in]
LONG nSampleRate, [in] SAFEARRAY(SHORT) pRawAudio, [in] LONG
nSamples);
};

Here's what the generated event-interface looks like after I compile
the .IDL. Note, however, that I had to change the type of the
SAFEARRAY(SHORT) to SAFEARRAY*. Please correct me if this type isn't
right. I remember reading a post where another user had done
this:

template<class T>
class CProxyIMyAudioEvents :
public IConnectionPointImpl<T, &__uuidof(IMyAudioEvents)>
{
HRESULT Fire_OnUserAudioData( LONG nUserID, LONG nSampleRate,
SAFEARRAY* pRawAudio, LONG nSamples)
{
HRESULT hr = S_OK;
T * pThis = static_cast<T *>(this);
int cConnections = m_vec.GetSize();
for (int iConnection = 0; iConnection < cConnections; iConnection++)
{
pThis->Lock();
CComPtr<IUnknown> punkConnection = m_vec.GetAt(iConnection);
pThis->Unlock();
IDispatch * pConnection = static_cast<IDispatch
*>(punkConnection.p);

IDispatch * pConnection = static_cast<IDispatch
*>(punkConnection.p);