ITunesEventInterface::ITunesIdSet
ITunesComEventSink::getIdsFromSafeArray( long index,
CComSafeArray<VARIANT>& array )
{
VARIANT elem;
LONG idx2d[2];
idx2d[0] = index;
idx2d[1] = 0;
array.MultiDimGetAt( idx2d, elem );
long sourceId = elem.lVal;
idx2d[1] = 1;
array.MultiDimGetAt( idx2d, elem );
long playlistId = elem.lVal;
idx2d[1] = 2;
array.MultiDimGetAt( idx2d, elem );
long trackId = elem.lVal;
idx2d[1] = 3;
array.MultiDimGetAt( idx2d, elem );
long dbId = elem.lVal;
ITunesEventInterface::ITunesIdSet ids = { sourceId, playlistId, trackId, dbId };
return ids;
}
/**
* Output = Map of topic id and field data - Map to be deleted by caller
*/
std::map<long,CComVariant>* RTDClient::readNewData(){
SAFEARRAY *data_sa;
long topic_count = 0;
HRESULT hr = comObjectScripRTD->RefreshData( &topic_count, &data_sa );
// Pass Address of SAFEARRAY pointer so that we get pointer to 2D safearray
if( FAILED(hr) ){ // Output Data has to be deleted by client
std::cout << "RefreshData COM failure." << " - hr - " << hr << std::endl;
return 0;
}
CComSafeArray<VARIANT> data; // Passing data_sa as Constructor input will copy it, but we need to destroy it after use
data.Attach( data_sa ); // So attach instead and let CComSafeArray handle it
ULONG row_count = data.GetCount(1); // No of Rows = 2nd Dimension Count
if( row_count == 0) return 0 ;
std::map<long,CComVariant> *output = new std::map<long,CComVariant>; // Map: Topicid, Field Data
long index[2];
for( ULONG i=0 ; i<row_count; i++ ){
index[0] = 0; // 0,x - Topic ids. 1,x - Data
index[1] = i;
CComVariant topic_id_var;
data.MultiDimGetAt( index, topic_id_var);
long topic_id = (long)MiscUtil::getLong( topic_id_var );
index[0] = 1;
index[1] = i;
CComVariant topic_data_var;
data.MultiDimGetAt( index, topic_data_var);
if( output->count(topic_id) != 0 && (*output)[topic_id] != topic_data_var ){
std::cout << "Duplicate:"; MiscUtil::printVariant((*output)[topic_id]); std::cout << "-"; MiscUtil::printVariant(topic_data_var);
std::cout << std::endl;
//abort(); // If exists - we can have multiple topic values in same call => use vector
}
(*output)[topic_id] = topic_data_var;
}
return output;
}