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| How To Display A Channel Name In C ? |
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| debugme |
 Posted: Wed Jan 14, 2004 8:56 am Post subject: How To Display A Channel Name In C ? |
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Apprentice
Joined: 14 Jan 2004
Posts: 27
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Dear Friends,
I can find the name of the first channel and display it using the MQCMD_INQUIRE_CHANNEL command.
But when I use the MQCMD_INQUIRE_CHANNEL_NAMES as below, the code displays garbage.
| Code: |
// (1) The Required Parameter
mqAddString(requestsBag, MQCACH_CHANNEL_NAME, MQBL_NULL_TERMINATED, "*", &completionCode, &reasonCode);
if(completionCode == MQCC_FAILED) exit(EXIT_FAILURE);
// (2) Run The Command
mqExecute(connection, MQCMD_INQUIRE_CHANNEL_NAMES, MQHB_NONE, requestsBag, responseBag, MQHO_NONE, MQHO_NONE, &completionCode, &reasonCode);
// (3) Count Bag Items
mqCountItems(responseBag, MQHA_BAG_HANDLE, &itemCountInBag, &completionCode, &reasonCode);
printf("Found %d items in bag", itemCountInBag);
// (4) Take Channel Out
MQHBAG qAttrsBag;
mqInquireBag(responseBag, MQHA_BAG_HANDLE, 0, &qAttrsBag, &completionCode, &reasonCode);
// (4) Show Channel Name
MQCHAR channelName[MQ_CHANNEL_NAME_LENGTH] ;
MQLONG channelNameLength;
mqInquireString(qAttrsBag, MQCACH_CHANNEL_NAME, 0, MQ_CHANNEL_NAME_LENGTH, channelName, &channelNameLength, NULL, &completionCode, &reasonCode);
mqTrim(MQ_CHANNEL_NAME_LENGTH, channelName, channelName, &completionCode, &reasonCode);
printf("Channel Name = %s\n\n", channelName); |
Any help would be much appreciated 
regards, Asad. |
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| JasonE |
| Posted: Wed Jan 14, 2004 9:18 am Post subject: |
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Grand Master
Joined: 03 Nov 2003
Posts: 1220
Location: Hursley
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Untested and I am not a bag expert....
But step 4 should use
MQCACH_CHANNEL_NAMES rather than MQCACH_CHANNEL_NAME |
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| debugme |
| Posted: Wed Jan 14, 2004 9:25 am Post subject: |
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Apprentice
Joined: 14 Jan 2004
Posts: 27
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"You the man Jason !"
It now works perfectly.
Thanks a lot  |
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