COM API across multiple applications

Hi,

I am using an API, which is built using COM. In order to use the API is do the following

Code:

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IPSAPIPtr m_APIObject;

m_APIObject.CreateInstance(__uuidof(PSAPI));

HRESULT hr = m_APIObject->Connect(username,passwd);

m_APIObject->setValue(parameters);

m_APIObject->resetvalue(parameters);

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There are three applications which are using the interface (PSAPI). Instead of creating a separate instance of the API for each application, i want to create a single instance and connect to the db and all the three applications can use it.

Is it possible to do ? If so , can someone tell what are steps invovled and what kind of project it should be.

Can you please throw some light.

Thanks for all the help !!

BTW all the 3 applications are built VC++ and they are command line.


thanks

Quote:

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Originally Posted by novice123

I am using an API, which is built using COM.
. . .
There are three applications which are using the interface (PSAPI). Instead of creating a separate instance of the API for each application, i want to create a single instance and connect to the db and all the three applications can use it.

Is it possible to do ? If so , can someone tell what are steps invovled and what kind of project it should be.

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Can guess it should be local COM server which runs the singleton object.

Another thing I'd to say I dislike the whole design. Why should db connection be exposed such odd way? Does it really needed? The only reason I can imagine is the object might implement some middle-tie business-rule level. But in that case the same might be done by db server itself (of course if it's 'smart' enough).

Quote:

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BTW all the 3 applications are built VC++ and they are command line.

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Absolutely doesn't matter. Neither whitch tool they made with nor their command-line-ness.