Message Id and Correl Id

[fuzzbox]

Hi
I am doing some MQ application and I need to send a message using Msg Id and retrieve only the response to this message using Correl Id (at least I think thats what I should be doing).
When I send a message - I use the MQPMO_NEW_MSG_ID option to ask the Queue to create a new, unique message ID - but it doesn't seem to be doing this as every message which I put on the queue receives the same message Id (well it seems to anyway).

Am I missing something ? Or doing something wrong ?

Thanks in advance
Brian

 

[smeridew]

Be careful to clear the messageID field between puts, or else you'll get the same ID used over and over. Try this:
1. Application 1 MQPUT using MsgID
2. Application 2 MQGET
3. Application 2 Move MsgID to CorrelID (outbound msg)
4. Application 2 MQPUT that CorrelID
5. Application 1 MQGET using CorrelID = original MsgID


Good Luck,

Scott Meridew
MQ Squared
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