@shenping22975

Sorry about the issue that you are facing.

I tested the code and it works fine on my machine.

void AppClient::onRefreshMsg( const RefreshMsg& refreshMsg, const OmmConsumerEvent& ) 
{
    cout << "Refresh" << endl;
     //cout << refreshMsg << endl;        // defaults to refreshMsg.toString()
}

void AppClient::onUpdateMsg( const UpdateMsg& updateMsg, const OmmConsumerEvent& ) 
{
    cout << "Update" << endl;
    //cout << updateMsg << endl;        // defaults to updateMsg.toString()
}

void AppClient::onStatusMsg( const StatusMsg& statusMsg, const OmmConsumerEvent& ) 
{
    cout << statusMsg << endl;        // defaults to statusMsg.toString()
}

int main( int argc, char* argv[] )
{ 
    try { 
        AppClient client;
        OmmConsumerConfig config;
        EmaString itemName = "EUR=";
        EmaString consumerName = "Consumer_4";
        config.username("username");
        config.password("password");
        config.clientId("clientID");
        OmmConsumer consumer(config.consumerName(consumerName));
        consumer.registerClient(ReqMsg().serviceName("ELEKTRON_DD").name(itemName), client);
        sleep(900000); // API calls onRefreshMsg(), onUpdateMsg(), or onStatusMsg()
    }
    catch (const OmmException& excp) {
        cout << excp << endl;
    }
    return 0;
}

You may check the EMAConfig.XML which contains the correct configurations.

        <Consumer>
            <Name value="Consumer_4"/>


            <!-- ChannelSet specifies an ordered list of Channels to which OmmConsumer will attempt to    -->
            <!-- connect, one at a time, if the previous one fails to connect                            -->
            <ChannelSet value="Channel_4"/>


            <Logger value="Logger_1"/>
            <Dictionary value="Dictionary_2"/>
            <XmlTraceToStdout value="0"/>
            <XmlTraceToFile value="0"/>
            <RestEnableLog value="0"/>
        </Consumer>


...
...
        <Channel>
            <Name value="Channel_4"/>
            <ChannelType value="ChannelType::RSSL_ENCRYPTED"/>
            <CompressionType value="CompressionType::None"/>       
            <GuaranteedOutputBuffers value="5000"/>
            <!-- EMA discovers a host and a port from RDP service discovery for the specified location 
                when both of them are not set and the session management is enable. -->
            <Location value="us-east-1"/>
            <EnableSessionManagement value="1"/>
            <EncryptedProtocolType value="EncryptedProtocolType::RSSL_SOCKET"/>
            <!-- ObjectName is optional: defaulted to ""                                                -->
            <ObjectName value=""/>
        </Channel>

I hope that this information is of help