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MQSeries.net Forum Index » IBM MQ API Support » Using LoadLibrary with IMQC23VN.DLL

Using LoadLibrary with IMQC23VN.DLL

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stig306

Posted: Thu Apr 23, 2009 1:32 am Post subject: Using LoadLibrary with IMQC23VN.DLL

Newbie

Joined: 23 Apr 2009
Posts: 2

I trying to produce a C++ project that can run with different versions of MQ Client e.g 5.3/6.0. Is it possible to explicitly link to IMQC23VN.DLL ?

typedef void (WINAPI * PCTOR) (LPVOID);
m_hInstLib = LoadLibrary("..\IMQC23VN.DLL");

ImqQueueManager *pQOutboundManager = (ImqQueueManager *) malloc (sizeof (ImqQueueManager));

PCTOR pCtorImqMgr = (PCTOR) GetProcAddress(m_hInstLib, "??0ImqMgr@@QAE@XZ");
pCtorImqMgr(pQOutboundManager);

etc

Has anyone managed to do this?
Thanks

Vitor

Posted: Thu Apr 23, 2009 1:39 am Post subject: Re: Using LoadLibrary with IMQC23VN.DLL

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

stig306 wrote:

Has anyone managed to do this?

I suspect very few people have tried. The v5.3 client can connect to a v6 queue manager and a v6 client can connect to a v5.3 queue manager, so most apps use the available dll dynamically and get on with their lives.

What's your requirement for specific client versions? Or have you experienced problems mixing versions? If so, what problems?
_________________
Honesty is the best policy.
Insanity is the best defence.

stig306

Posted: Thu Apr 23, 2009 2:38 am Post subject:

Newbie

Joined: 23 Apr 2009
Posts: 2

I am currently using v5.3 but want to make sure my project is still ok when it runs with version 6 client. I am about to try this and reading your response it sounds like it should still work ok.

My reason for attempting this is I currently have 3 project files that link to 5.1/5.2 or 5.3
e.g. one project links to ..\mqseries 5.3\tools\lib\imqb23vn.lib and include directory ; ..\mqseries 5.3\tools\c\include.

I thought instead of creating a new project for version 6 I have instead one project that loaded it explicitly.

Thanks

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